Table of Contents

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

☑			QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended September 30, 2023

Or

☐			TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

Commission File Number 001-40217

Sun Country Airlines Holdings, Inc.

(Exact name of registrant as specified in its charter)

Delaware			82-4092570
(State or other jurisdiction of incorporation or organization)			(I.R.S. Employer Identification No.)
2005 Cargo Road
Minneapolis, Minnesota			55450
(Address of principal executive offices)			(Zip Code)
Registrant’s telephone number, including area code: (651) 681-3900

Securities registered pursuant to Section 12(b) of the Act:

Title of each class

Trading Symbol

Name of each exchange on which registered

Common Stock, par value $0.01 per share

SNCY

The Nasdaq Stock Market LLC

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.

Yes ☑ No ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).

Yes ☑ No ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and "emerging growth company" in Rule 12b-2 of the Exchange Act.

			Large accelerated Filer ☐			Accelerated Filer ☑			Non-accelerated Filer ☐
						Smaller reporting company ☐			Emerging growth company ☑

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).

Yes ☐ No ☑

Number of shares outstanding by each class of common stock, as of September 30, 2023:

Common Stock, $0.01 par value – 54,133,851 shares outstanding

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Table of Contents

Sun Country Airlines Holdings, Inc.

Form 10-Q

Table of Contents

						Page
Part I. Financial Information
Item 1. Financial Statements
Condensed Consolidated Balance Sheets						3
Condensed Consolidated Statements of Operations						5
Condensed Consolidated Statements of Comprehensive Income						6
Condensed Consolidated Statements of Changes in Stockholders’ Equity						7
Condensed Consolidated Statements of Cash Flows						8
Notes to the Condensed Consolidated Financial Statements
1			Basis of Presentation			9
2			Revenue			9
3			Earnings per Share			12
4			Aircraft			13
5			Asset Acquisitions			14
6			Debt			15
7			Stock-Based Compensation			17
8			Investments			18
9			Fair Value Measurements			18
10			Income Taxes			19
11			Stockholders' Equity			19
12			Commitments and Contingencies			20
13			Operating Segments			21
14			Subsequent Events			22
Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations						23
Item 3. Quantitative and Qualitative Disclosures About Market Risk						47
Item 4. Controls and Procedures						47
Part II. Other Information
Item 1. Legal Proceedings						50
Item 1A. Risk Factors						50
Item 2. Unregistered Sales of Equity Securities and Use of Proceeds						50
Item 3. Defaults Upon Senior Securities						51
Item 4. Mine Safety Disclosures						51
Item 5. Other Information						51
Item 6. Exhibits						52
Signatures						53

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PART I. Financial Information

ITEM 1. FINANCIAL STATEMENTS

SUN COUNTRY AIRLINES HOLDINGS, INC.

CONDENSED CONSOLIDATED BALANCE SHEETS

(Dollars in thousands, except per share and share amounts)

			September 30, 2023						December 31, 2022
			(Unaudited)
ASSETS
Current Assets:
Cash and Cash Equivalents			$	26,967					$	92,086
Restricted Cash			10,953						10,842
Investments			153,290						178,936
Accounts Receivable, net of an allowance for credit losses of $110 and $231, respectively			42,876						35,124
Short-term Lessor Maintenance Deposits			1,191						1,241
Inventory, net of a reserve for obsolescence of $1,076 and $1,107, respectively			7,678						7,659
Prepaid Expenses			13,358						11,423
Other Current Assets			3,992						8,179
Total Current Assets			260,305						345,490
Property & Equipment, net:
Aircraft and Flight Equipment			679,145						636,584
Aircraft and Flight Equipment Held for Operating Lease			154,165						—
Ground Equipment and Leasehold Improvements			39,316						35,948
Computer Hardware and Software			12,856						10,831
Finance Lease Assets			285,942						261,991
Rotable Parts			16,820						17,059
Total Property & Equipment			1,188,244						962,413
Accumulated Depreciation & Amortization			(231,501)						(176,746)
Total Property & Equipment, net			956,743						785,667
Other Assets:
Goodwill			222,223						222,223
Other Intangible Assets, net of accumulated amortization of $22,757 and $18,890, respectively			84,984						85,110
Operating Lease Right-of-use Assets			15,475						22,182
Aircraft Deposits			9,589						9,134
Long-term Lessor Maintenance Deposits			41,172						32,433
Deferred Tax Asset			—						12,956
Other Assets			10,577						9,217
Total Other Assets			384,020						393,255
Total Assets			$	1,601,068					$	1,524,412

See accompanying Notes to Condensed Consolidated Financial Statements

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SUN COUNTRY AIRLINES HOLDINGS, INC.

CONDENSED CONSOLIDATED BALANCE SHEETS

(Dollars in thousands, except per share and share amounts)

			September 30, 2023						December 31, 2022
			(Unaudited)
LIABILITIES AND STOCKHOLDERS' EQUITY
Current Liabilities:
Accounts Payable			$	55,680					$	62,370
Accrued Salaries, Wages, and Benefits			30,451						26,521
Accrued Transportation Taxes			12,795						17,666
Air Traffic Liabilities			130,453						157,995
Finance Lease Obligations			32,096						17,990
Loyalty Program Liabilities			9,415						13,963
Operating Lease Obligations			2,286						6,296
Current Maturities of Long-term Debt, net			83,339						57,548
Income Tax Receivable Agreement Liability			1,511						2,260
Other Current Liabilities			12,849						14,519
Total Current Liabilities			370,875						377,128
Long-term Liabilities:
Finance Lease Obligations			231,185						233,306
Loyalty Program Liabilities			4,432						1,474
Operating Lease Obligations			17,108						19,836
Long-term Debt, net			351,766						294,687
Deferred Tax Liability			5,214						—
Income Tax Receivable Agreement Liability			99,509						101,540
Other Long-term Liabilities			1,618						3,729
Total Long-term Liabilities			710,832						654,572
Total Liabilities			1,081,707						1,031,700
Commitments and Contingencies (see Note 12)
Stockholders' Equity:
Common stock, with $0.01 par value, 995,000,000 shares authorized, 58,815,139 and 58,217,647 issued and 54,133,851 and 57,325,238 outstanding at September 30, 2023 and December 31, 2022, respectively			588						582
Preferred stock, with $0.01 par value, 5,000,000 shares authorized, no shares issued and outstanding at September 30, 2023 and December 31, 2022			—						—
Treasury stock, at cost, 4,681,288 and 892,409 shares held at September 30, 2023 and December 31, 2022, respectively			(80,681)						(17,605)
Additional Paid-In Capital			511,375						488,494
Retained Earnings			88,585						22,048
Accumulated Other Comprehensive Loss			(506)						(807)
Total Stockholders' Equity			519,361						492,712
Total Liabilities and Stockholders' Equity			$	1,601,068					$	1,524,412

See accompanying Notes to Condensed Consolidated Financial Statements

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SUN COUNTRY AIRLINES HOLDINGS, INC.

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

(Dollars in thousands, except per share and share amounts)

(Unaudited)

			Three Months Ended September 30,												Nine Months Ended September 30,
			2023						2022						2023						2022
Operating Revenues:
Passenger			$	214,355					$	195,360					$	709,490					$	592,753
Cargo			26,059						23,687						74,437						65,930
Other			8,462						2,653						20,150						8,607
Total Operating Revenues			248,876						221,700						804,077						667,290
Operating Expenses:
Aircraft Fuel			61,179						64,843						185,829						206,334
Salaries, Wages, and Benefits			72,541						58,661						223,890						178,576
Aircraft Rent			22						1,949						2,281						7,347
Maintenance			15,330						11,018						44,311						35,794
Sales and Marketing			7,569						6,827						26,005						23,336
Depreciation and Amortization			22,762						17,181						64,577						49,364
Ground Handling			9,382						8,669						28,299						24,838
Landing Fees and Airport Rent			13,958						12,926						36,847						32,708
Other Operating, net			27,127						24,235						81,663						68,401
Total Operating Expenses			229,870						206,309						693,702						626,698
Operating Income			19,006						15,391						110,375						40,592
Non-operating Income (Expense):
Interest Income			2,480						1,610						7,766						2,166
Interest Expense			(11,403)						(7,493)						(31,272)						(23,097)
Other, net			(15)						3,422						(370)						(5,156)
Total Non-operating Expense, net			(8,938)						(2,461)						(23,876)						(26,087)
Income Before Income Tax			10,068						12,930						86,499						14,505
Income Tax Expense			2,477						2,253						19,963						4,113
Net Income			$	7,591					$	10,677					$	66,536					$	10,392
Net Income per share to common stockholders:
Basic			$	0.14					$	0.18					$	1.19					$	0.18
Diluted			$	0.13					$	0.18					$	1.12					$	0.17
Shares used for computation:
Basic			55,435,386						58,146,606						56,051,173						58,039,201
Diluted			58,595,646						60,793,516						59,281,819						61,372,735

See accompanying Notes to Condensed Consolidated Financial Statements

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SUN COUNTRY AIRLINES HOLDINGS, INC.

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

(Dollars in thousands)

(Unaudited)

			Three Months Ended September 30,												Nine Months Ended September 30,
			2023						2022						2023						2022
Net Income			$	7,591					$	10,677					$	66,536					$	10,392
Other Comprehensive Income (Loss):
Net unrealized gains (losses) on Available-for-Sale securities, net of deferred tax expense (benefit) of $46, $(244), $90 and $(309), respectively			158						(562)						301						(782)
Other Comprehensive Income (Loss)			158						(562)						301						(782)
Comprehensive Income			$	7,749					$	10,115					$	66,837					$	9,610

See accompanying Notes to Condensed Consolidated Financial Statements

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SUN COUNTRY AIRLINES HOLDINGS, INC.

CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS’ EQUITY

(Dollars in thousands, except share amounts)

(Unaudited)

			Nine Months Ended September 30, 2023
			Warrants						Common Stock												Treasury Stock												Additional Paid-in Capital						Retained Earnings						Accumulated Other Comprehensive (Loss) Income						Total
									Shares						Amount						Shares						Amount
December 31, 2022			2,402,268						58,217,647						$	582					892,409						$	(17,605)					$	488,494					$	22,048					$	(807)					$	492,712
Stock Issued for Stock-Based Awards			—						147,105						2						—						—						554						—						—						556
Net Stock Settlement of Stock-Based Awards			—						—						—						406						(8)						—						—						—						(8)
Common Stock Repurchases			—						—						—						1,230,932						(22,549)						7,501						—						—						(15,048)
Net Income			—						—						—						—						—						—						38,328						—						38,328
Amazon Warrants			189,652						—						—						—						—						1,400						—						—						1,400
Stock-based Compensation			—						—						—						—						—						2,678						—						—						2,678
Other Comprehensive Income			—						—						—						—						—						—						—						389						389
March 31, 2023			2,591,920						58,364,752						$	584					2,123,747						$	(40,162)					$	500,627					$	60,376					$	(418)					$	521,007
Stock Issued for Stock-Based Awards			—						187,975						2						—						—						613						—						—						615
Common Stock Repurchases			—						—						—						416,751						(7,511)						—						—						—						(7,511)
Net Income			—						—						—						—						—						—						20,618						—						20,618
Amazon Warrants			252,869						—						—						—						—						1,867						—						—						1,867
Stock-based Compensation			—						—						—						—						—						4,415						—						—						4,415
Other Comprehensive Loss			—						—						—						—						—						—						—						(246)						(246)
June 30, 2023			2,844,789						58,552,727						$	586					2,540,498						$	(47,673)					$	507,522					$	80,994					$	(664)					$	540,765
Stock Issued for Stock-Based Awards			—						262,412						2						—						—						1,414						—						—						1,416
Common Stock Repurchases			—						—						—						2,140,790						(33,008)						—						—						—						(33,008)
Net Income			—						—						—						—						—						—						7,591						—						7,591
Amazon Warrants			189,652						—						—						—						—						1,400						—						—						1,400
Stock-based Compensation			—						—						—						—						—						1,039						—						—						1,039
Other Comprehensive Income			—						—						—						—						—						—						—						158						158
September 30, 2023			3,034,441						58,815,139						$	588					4,681,288						$	(80,681)					$	511,375					$	88,585					$	(506)					$	519,361

			Nine Months Ended September 30, 2022
			Warrants						Common Stock												Treasury Stock												Additional Paid-in Capital						Retained Earnings						Accumulated Other Comprehensive (Loss)						Total
									Shares						Amount						Shares						Amount
December 31, 2021			1,643,660						57,872,452						$	579					—						$	—					$	485,638					$	4,372					$	—					$	490,589
Stock Issued for Stock-Based Awards			—						91,868						1						—						—						522						—						—						523
Net Income			—						—						—						—						—						—						3,637						—						3,637
Amazon Warrants			189,652						—						—						—						—						1,400						—						—						1,400
Stock-based Compensation			—						—						—						—						—						920						—						—						920
March 31, 2022			1,833,312						57,964,320						$	580					—						$	—					$	488,480					$	8,009					$	—					$	497,069
Stock Issued for Stock-Based Awards			—						181,404						1						—						—						1,037						—						—						1,038
Net Stock Settlement of Stock-Based Awards			—						—						—						1,823						(52)						—						—						—						(52)
Net Loss			—						—						—						—						—						—						(3,922)						—						(3,922)
Amazon Warrants			189,652						—						—						—						—						1,400						—						—						1,400
Stock-based Compensation			—						—						—						—						—						575						—						—						575
Other Comprehensive Loss			—						—						—						—						—						—						—						(220)						(220)
June 30, 2022			2,022,964						58,145,724						$	581					1,823						$	(52)					$	491,492					$	4,087					$	(220)					$	495,888
Stock Issued for Stock-Based Awards			—						22,773						1						—						—						114						—						—						115
Net Income			—						—						—						—						—						—						10,677						—						10,677
Amazon Warrants			189,652						—						—						—						—						1,400						—						—						1,400
Stock-based Compensation			—						—						—						—						—						487						—						—						487
Other Comprehensive Loss			—						—						—						—						—						—						—						(562)						(562)
September 30, 2022			2,212,616						58,168,497						$	582					1,823						$	(52)					$	493,493					$	14,764					$	(782)					$	508,005

See accompanying Notes to Condensed Consolidated Financial Statements

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SUN COUNTRY AIRLINES HOLDINGS, INC.

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(Dollars in thousands)

(Unaudited)

			Nine Months Ended September 30,
			2023						2022
Net Income			$	66,536					$	10,392
Adjustments to reconcile Net Income to Cash from Operating Activities:
Depreciation and Amortization			64,577						49,364
Deferred Income Taxes			18,080						3,183
Other, net			14,433						10,235
Changes in Operating Assets and Liabilities:
Accounts Receivable			(7,083)						(88)
Inventory			(1,478)						(1,402)
Prepaid Expenses			(1,929)						(3,188)
Lessor Maintenance Deposits			(8,689)						(10,256)
Aircraft Deposits			(482)						(2,569)
Other Assets			70						(5,478)
Accounts Payable			(5,855)						8,674
Accrued Transportation Taxes			(4,872)						(1,736)
Air Traffic Liabilities			(27,542)						14,269
Loyalty Program Liabilities			(1,590)						(3,401)
Operating Lease Obligations			(3,858)						(61)
Other Liabilities			2,333						3,733
Net Cash Provided by Operating Activities			102,651						71,671
Cash Flows from Investing Activities:
Purchases of Property & Equipment			(210,641)						(177,658)
Purchases of Investments			(82,574)						(130,529)
Proceeds from the Maturities of Investments			110,850						—
Other, net			4,087						10,577
Net Cash Used in Investing Activities			(178,278)						(297,610)
Cash Flows from Financing Activities:
Common Stock Repurchases			(55,051)						—
Proceeds from Borrowings			119,200						188,277
Repayment of Finance Lease Obligations			(16,390)						(37,842)
Repayment of Borrowings			(35,475)						(95,305)
Other, net			(1,665)						(901)
Net Cash Provided by Financing Activities			10,619						54,229
Net Decrease in Cash, Cash Equivalents and Restricted Cash			(65,008)						(171,710)
Cash, Cash Equivalents and Restricted Cash--Beginning of the Period			102,928						317,785
Cash, Cash Equivalents and Restricted Cash--End of the Period			$	37,920					$	146,075
Non-cash transactions:
Aircraft and Flight Equipment Acquired through Finance Leases			$	—					$	40,480
Changes to Finance Lease Assets due to Lease Modifications			$	26,427					$	46,311
Aircraft and Flight Equipment Acquired From Exercise of Finance Lease Purchase Option, net of Accumulated Depreciation			$	2,386					$	28,012
The following provides a reconciliation of Cash, Cash Equivalents and Restricted Cash to the amounts reported on the Condensed Consolidated Balance Sheets:
			September 30, 2023						September 30, 2022
Cash and Cash Equivalents			$	26,967					$	131,912
Restricted Cash			10,953						14,163
Total Cash, Cash Equivalents and Restricted Cash			$	37,920					$	146,075

See accompanying Notes to Condensed Consolidated Financial Statements

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SUN COUNTRY AIRLINES HOLDINGS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Dollars in thousands, except per share and share amounts)

(Unaudited)

1.    BASIS OF PRESENTATION

Sun Country Airlines Holdings, Inc. (together with its consolidated subsidiaries, "Sun Country" or the "Company") is the parent company of Sun Country, Inc., which is a certificated air carrier providing scheduled passenger service, air cargo service, charter air transportation and related services.

The Company has prepared the unaudited Condensed Consolidated Financial Statements according to U.S. Generally Accepted Accounting Principles (“GAAP”) and has included the accounts of Sun Country Airlines Holdings, Inc. and its subsidiaries. Certain information and footnote disclosures normally included in the audited annual financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to the rules and regulations of the U.S. Securities and Exchange Commission ("SEC") for Form 10-Q. Therefore, the accompanying Condensed Consolidated Financial Statements of Sun Country Airlines Holdings, Inc. should be read in conjunction with the Consolidated Financial Statements contained in the Company's Annual Report on Form 10-K for the year ended December 31, 2022 as filed with the SEC ("2022 10-K"). Management believes that all adjustments necessary for the fair presentation of results, consisting of normally recurring items, have been included in the unaudited Condensed Consolidated Financial Statements for the interim periods presented. The Company reclassified certain prior period amounts to conform to the current period presentation. All material intercompany balances and transactions have been eliminated in consolidation.

The preparation of financial statements in accordance with GAAP requires management to make certain estimates and assumptions that affect the reported amounts of assets and liabilities, revenues and expenses, and the disclosure of contingent assets and liabilities at the date of the financial statements. Actual results could differ from those estimates.

The Company completed its public float calculation for SEC reporting purposes as of June 30, 2023, as required. The Company will be a large accelerated filer as of December 31, 2023.

Due to impacts from seasonal variations in the demand for air travel, the volatility of aircraft fuel prices, uncertainties in pilot staffing, the impact of macroeconomic conditions including inflationary pressures, and other factors, operating results for the nine months ended September 30, 2023 are not necessarily indicative of operating results for future quarters or for the year ending December 31, 2023.

2.    REVENUE

Sun Country is a certificated air carrier generating Operating Revenues from Scheduled Service, Charter service, Ancillary, Cargo and Other revenue. Scheduled Service revenue mainly consists of base fares. Charter service revenue is primarily generated through service provided to the U.S. Department of Defense, collegiate and professional sports teams, and casinos. Ancillary revenues consist of revenue earned from air travel-related services, such as: baggage fees, seat selection fees, other fees and on-board sales. Cargo consists of revenue earned from flying cargo aircraft for Amazon.com Services, Inc. (together with its affiliates, “Amazon”) under the Air Transportation Services Agreement (the “ATSA”). Other revenue consists primarily of revenue from services in connection with Sun Country Vacations products and rental revenue related to certain transactions where the Company acts as a lessor.

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SUN COUNTRY AIRLINES HOLDINGS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Dollars in thousands, except per share and share amounts)

(Unaudited)

The significant categories comprising Operating Revenues are as follows:

			Three Months Ended September 30,												Nine Months Ended September 30,
			2023						2022						2023						2022
Scheduled Service			$	96,483					$	102,200					$	360,607					$	334,679
Charter Service			47,437						42,899						143,250						118,526
Ancillary			70,435						50,261						205,633						139,548
Passenger			214,355						195,360						709,490						592,753
Cargo			26,059						23,687						74,437						65,930
Other			8,462						2,653						20,150						8,607
Total Operating Revenues			$	248,876					$	221,700					$	804,077					$	667,290

The Company attributes and measures its Operating Revenues by geographic region as defined by the Department of Transportation ("DOT") for airline reporting based upon the origin of each passenger and cargo flight segment.

The Company’s operations are highly concentrated in the U.S., but include service to many international locations, primarily based on scheduled service to Latin America during the winter season and on military charter services.

Total Operating Revenues by geographic region are as follows:

			Three Months Ended September 30,												Nine Months Ended September 30,
			2023						2022						2023						2022
Domestic			$	242,504					$	214,904					$	767,509					$	634,963
Latin America			6,372						6,756						36,078						32,182
Other			—						40						490						145
Total Operating Revenues			$	248,876					$	221,700					$	804,077					$	667,290

Contract Balances

The Company’s contract assets primarily relate to costs incurred to get Amazon cargo aircraft ready for service. The balances are included in Other Current Assets and Other Assets on the Condensed Consolidated Balance Sheets.

The Company’s contract liabilities are comprised of: 1) ticket sales for transportation that has not yet been provided (reported as Air Traffic Liabilities on the Condensed Consolidated Balance Sheets), 2) outstanding loyalty points that may be redeemed for future travel and other non-air travel awards (reported as Loyalty Program Liabilities on the Condensed Consolidated Balance Sheets) and, 3) the Amazon Deferred Up-front Payment received (reported within Other Current Liabilities and Other Long-term Liabilities on the Condensed Consolidated Balance Sheets).

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Contract Assets and Liabilities are as follows:

			September 30, 2023						December 31, 2022
Contract Assets
Costs to fulfill contract with Amazon			$	1,669					$	2,195
Total Contract Assets			$	1,669					$	2,195
Contract Liabilities
Air Traffic Liabilities			$	130,453					$	157,995
Loyalty Program Liabilities			13,847						15,437
Amazon Deferred Up-front Payment			2,486						3,271
Total Contract Liabilities			$	146,786					$	176,703

The balance in the Air Traffic Liabilities fluctuates with seasonal travel patterns. Most tickets can be purchased no more than twelve months in advance, therefore any revenue associated with tickets sold for future travel will be recognized within that timeframe. For the nine months ended September 30, 2023, $152,292 of revenue was recognized in Passenger revenue that was included in the Air Traffic Liabilities as of December 31, 2022.

Loyalty Program

The Sun Country Rewards program provides loyalty awards to program members based on accumulated loyalty points. The Company records a liability for loyalty points earned by passengers under the Sun Country Rewards program using two methods: 1) a liability for points that are earned by passengers on purchases of the Company’s services is established by deferring revenue based on the redemption value, net of estimated loyalty points that will expire unused, or breakage; and 2) a liability for points attributed to loyalty points issued to the Company’s Visa card holders is established by deferring a portion of payments received from the Company’s co-branded agreement. The balance of the Loyalty Program Liabilities fluctuates based on seasonal patterns, which impacts the volume of loyalty points awarded through travel or issued to co-branded credit card and other partners (deferral of revenue) and loyalty points redeemed (recognition of revenue). Due to these reasons, the timing of loyalty point redemptions can vary significantly.

Changes in the Loyalty Program Liabilities are as follows:

			2023						2022
Balance – January 1			$	15,437					$	19,718
Loyalty Points Earned			6,209						5,125
Loyalty Points Redeemed (1)			(7,799)						(8,526)
Balance – September 30			$	13,847					$	16,317

______________________

(1)			Loyalty points are combined in one homogenous pool, which includes both air and non-air travel awards, and are not separately identifiable. As such, the revenue recognized is comprised of points that were part of the Loyalty Program Liabilities balance at the beginning of the period, as well as points that were earned during the period.

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3.    EARNINGS PER SHARE

The following table shows the computation of basic and diluted earnings per share:

			Three Months Ended September 30,												Nine Months Ended September 30,
			2023						2022						2023						2022
Numerator:
Net Income			$	7,591					$	10,677					$	66,536					$	10,392
Denominator:
Weighted Average Common Shares Outstanding - Basic			55,435,386						58,146,606						56,051,173						58,039,201
Dilutive effect of Stock Options, RSUs and Warrants (1)			3,160,260						2,646,910						3,230,646						3,333,534
Weighted Average Common Shares Outstanding - Diluted			58,595,646						60,793,516						59,281,819						61,372,735
Basic earnings per share			$	0.14					$	0.18					$	1.19					$	0.18
Diluted earnings per share			$	0.13					$	0.18					$	1.12					$	0.17

______________________

(1)			There were 2,810,840 and 3,221,617 performance-based stock options outstanding at September 30, 2023 and 2022, respectively. As of September 30, 2023, 100% of the performance-based stock options have vested. As of September 30, 2022, 63% of the performance-based stock options were expected to vest.

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4. AIRCRAFT

As of September 30, 2023, Sun Country's fleet consisted of 59 Boeing 737-NG aircraft, comprised of 54 Boeing 737-800s and five Boeing 737-900ERs.

The following tables summarize the Company’s aircraft fleet activity for the nine months ended September 30, 2023 and 2022, respectively:

			December 31, 2022						Additions						Reclassifications						Removals						September 30, 2023
Passenger:
Owned			29						1						—						(1)						29
Finance leases (1)			11						—						2						—						13
Operating leases			2						—						(2)						—						—
Sun Country Airlines’ Fleet			42						1						—						(1)						42
Cargo:
Aircraft Operated for Amazon			12						—						—						—						12
Other Owned:
Aircraft Held for Operating Lease			—						5						—						—						5
Total Aircraft			54						6						—						(1)						59
			December 31, 2021						Additions						Reclassifications						Removals						September 30, 2022
Passenger:
Owned			21						5						4						(1)						29
Finance leases (2)			9						2						—						—						11
Operating leases			6						—						(4)						—						2
Sun Country Airlines’ Fleet			36						7						—						(1)						42
Cargo:
Aircraft Operated for Amazon			12						—						—						—						12
Total Aircraft			48						7						—						(1)						54

(1)			Two aircraft operating leases were reclassified into finance leases, as further described below.
(2)			Two aircraft operating leases were reclassified into finance leases and two separate aircraft finance lease purchase options were exercised, resulting in a net change of zero finance lease reclassifications.

During the nine months ended September 30, 2023, the Company acquired five 737-900ERs that are currently on lease to an unaffiliated airline ("Aircraft Held for Operating Lease"). The five Aircraft Held for Operating Lease were financed through a term loan arrangement. See Note 5 of these Condensed Consolidated Financial Statements for more information on this transaction. Additionally, during the nine months ended September 30, 2023, the Company acquired an incremental aircraft and executed two lease amendments to purchase two aircraft at the end of their respective lease terms. The lease amendments modified the classification of these leases from operating leases to finance leases and have expiration dates in fiscal year 2024. During the three months ended September 30, 2023, management approved a

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plan to retire an owned aircraft. Certain parts of the aircraft were maintained for future use by the Company or held for sale. The impact of the retirement and the assets held for sale were not material to the Company's Condensed Consolidated Financial Statements. Of the 34 Owned aircraft and Aircraft Held for Operating Lease as of September 30, 2023, 31 aircraft were financed and three aircraft were unencumbered.

During the nine months ended September 30, 2022, the Company executed lease amendments to purchase two aircraft at the end of the lease term, which modified the lease classification from operating leases to finance leases with expiration dates in fiscal year 2026 and retired one aircraft. Further, the Company purchased two aircraft previously classified as finance leases using proceeds from the issuance of Class A and Class B pass-through trust certificates (the "2022-1 EETC") and purchased two aircraft previously classified as operating leases. The Company also acquired seven incremental 737-800 aircraft, five of which were financed using proceeds from the 2022-1 EETC and two through a finance lease arrangement that is set to expire in fiscal year 2030.

Depreciation, amortization, and rent expense on aircraft are as follows:

												Three Months Ended September 30,												Nine Months Ended September 30,
Aircraft Status						Expense Type						2023						2022						2023						2022
Owned						Depreciation						$	14,395					$	10,179					$	40,709					$	29,027
Finance Leased						Amortization						5,183						4,419						14,741						12,533
Operating Leased						Aircraft Rent (1)						22						1,949						2,281						7,347
												$	19,600					$	16,547					$	57,731					$	48,907

(1)			Aircraft Rent expense includes credits for the amortization of over-market liabilities established at the Acquisition Date.

5. ASSET ACQUISITIONS

During the nine months ended September 30, 2023, the Company acquired five Aircraft Held for Operating Lease. The table below reflects the cumulative balances of the five aircraft as of the acquisition dates:

Asset						Balance Sheet Classification
Aircraft Held for Operating Lease						Aircraft and Flight Equipment Held for Operating Lease						$	114,632
Maintenance Rights Asset						Aircraft and Flight Equipment Held for Operating Lease						39,533
Over-Market Asset						Other Intangible Assets, net						3,741
Total												$	157,906

The purchase price was assigned to the assets based upon their relative fair values as of the acquisition date. The Company estimated the fair value of the Aircraft Held for Operating Lease principally based on market appraisals. The appraisals were based on an analysis of the economic conditions impacting both the airline industry and broader economy, the current fuel price environment, aircraft order data, passenger traffic levels, and qualitative and quantitative characteristics impacting the value of the acquired aircraft.

The fair value of the Maintenance Rights Asset was determined using a discounted cash flow method based on aircraft utilization levels at the time of the acquisition and the applicable rates as specified within the lease agreements.

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The fair value of the Over-Market Asset was determined using a discounted cash flow model that involves the comparison of contractual lease cash flows to the estimated at-market lease payments for an aircraft of the same type and age.

The purchase of the Aircraft Held for Operating Lease was financed using the proceeds from a term loan credit facility with a face amount of $119,200 and the Company's Cash and Cash Equivalents. For more information on the term loan credit facility, see Note 6 of these Condensed Consolidated Financial Statements.

Aircraft Held for Operating Lease

The Company obtained outright ownership of the Aircraft Held for Operating Lease upon purchase and assumed the position of lessor until the end of the lease terms. The Company is entitled to fixed payments over the remaining lease term for each aircraft, which expire at various dates between the fourth quarter of 2024 and the fourth quarter of 2025. On each lease expiry date, the Aircraft Held for Operating Lease will be redelivered to Sun Country and are expected to be inducted into the Company’s fleet. The rental revenue associated with the Aircraft Held for Operating Lease is recognized as it is earned and is included in Other revenue. The Company has recognized $5,870 and $11,742 of rental revenue during the three and nine months ended September 30, 2023, respectively.

Maintenance Rights Asset

Upon purchase of the Aircraft Held for Operating Lease, the Company recognized a Maintenance Rights Asset which represents the Company’s contractual right to receive the aircraft in a specified maintenance condition at the end of the lease. The acquired leases contain an end of lease compensation clause whereby the lessee is required to remit a cash payment to true-up the aircraft’s maintenance condition to full-life or perform the maintenance tasks needed to physically restore the airframe and engines to such a condition. The asset represents the difference between the Aircraft Held for Operating Lease’s physical maintenance condition as of the purchase date and the contractual return condition at the end of the lease term. The Maintenance Rights Asset is not depreciated over the lease term, nor will it accrete as additional life is consumed on the aircraft.

Over-Market Asset

Upon purchase of the Aircraft Held for Operating Lease, the Company recognized an intangible asset representing lease terms which are favorable to the lessor (unfavorable to the lessee), as compared with market terms of similar leases. The asset will be amortized over the remaining lease terms for the respective aircraft, which ranges from 1.2 to 2.2 years as of September 30, 2023. The amortization will be recognized as contra-revenue, offsetting the rental revenue associated with the Aircraft Held for Operating Lease included in Other revenue.

6.    DEBT

Credit Facilities

On February 10, 2021, the Company executed a five-year credit agreement (the “Credit Agreement”) with a group of lenders. The Credit Agreement includes a $25,000 Revolving Credit Facility (the "Revolving Credit Facility") and a $90,000 Delayed Draw Term Loan Facility (“DDTL”), which are collectively referred to as the “Credit Facilities.” The proceeds from the Revolving Credit Facility can be used for general corporate purposes, whereas the proceeds from the DDTL were to be used solely to finance the acquisition of aircraft or engines to be registered in the United States. The Credit Agreement includes financial covenants that

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require a minimum trailing 12-month EBITDAR ($87,700 as of March 31, 2022 and beyond) and minimum liquidity, as defined within the Credit Agreement, of $30,000 at the close of any business day. The Company was in compliance with these covenants as of September 30, 2023.

During 2021, the Company drew $80,500 on the DDTL to purchase six aircraft, which were previously under operating leases. During 2022, the Company repaid the outstanding balance of the DDTL in full using proceeds received from the 2022-1 EETC, which terminated the DDTL. As a result, no amounts under the DDTL were available to the Company as of September 30, 2023. The Company recorded a $1,557 loss on extinguishment of debt in 2022 in connection with the repayment of the DDTL, which represents the write-off of the unamortized deferred financing costs. As of September 30, 2023, the Company had $24,650 of financing available through the Revolving Credit Facility, as $350 had been pledged to support a letter of credit.

Long-term Debt

Term Loan Credit Facility

During the nine months ended September 30, 2023, the Company executed a term loan credit facility with a face amount of $119,200 for the purpose of financing the five Aircraft Held for Operating Lease. The loan is to be repaid monthly through March 2030. During the lease term, payments collected from the lessee will be applied directly to the repayment of principal and interest on the term loan credit facility. The Aircraft Held for Operating Lease, as well as the related lease payments received from the lessee, are pledged as collateral. During the nine months ended September 30, 2023, the Company recorded $1,820 in debt issuance costs associated with the term loan credit facility.

The interest rate on the term loan credit facility is determined by using a base rate, which resets monthly, plus an applicable margin, and a fixed credit spread adjustment of 0.1%. The applicable margin during the lease term is fixed at 3.75%, and is subsequently reduced to 3.25% once the aircraft have been redelivered to the Company and a Loan-to-Value ("LTV") ratio calculation is completed at the end of the lease term. The interest rate in effect as of September 30, 2023 was 9.2%. To the extent that the LTV ratio exceeds 75% at the end of the lease term, a principal prepayment will be required in order to reduce the ratio to 75%. If at any point within 12 months of the end of the lease term for each respective aircraft the Company deems it probable that a principal prepayment will be required in order to reduce the LTV ratio to 75%, and such amount can be reasonably estimated, the estimated principal prepayment amount will be reclassified from Long-term Debt, net to Current Maturities of Long-Term Debt, net on the Company's Condensed Consolidated Balance Sheets. In the event a principal prepayment is required, amounts received under the end of lease maintenance compensation clause may be applied towards the prepayment.

Pass-Through Trust Certificates

During March 2022, the Company arranged for the issuance of the 2022-1 EETC in an aggregate face amount of $188,277 for the purpose of financing or refinancing 13 aircraft. The Company is required to make bi-annual principal and interest payments each March and September, through March 2031. These notes bear interest at an annual rate between 4.84% and 5.75%. The weighted average interest rate was 5.05% as of September 30, 2023.

In December 2019, the Company arranged for the issuance of Class A, Class B and Class C trust certificates Series 2019-1 (the “2019-1 EETC”), in an aggregate face amount of $248,587 for the purpose of financing or refinancing 13 used aircraft, which was completed in 2020. The Company is required to make bi-annual principal and interest payments each June and December, through December 2027. These notes bear

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interest at an annual rate between 4.13% and 6.95%. The weighted average interest rate was 4.69% as of September 30, 2023.

Long-term Debt includes the following:

			September 30, 2023						December 31, 2022
2019-1 EETC (see terms and conditions above)			$	168,598					$	176,697
2022-1 EETC (see terms and conditions above)			158,775						179,019
Term Loan Credit Facility (see terms and conditions above)			112,068						—
Total Debt			439,441						355,716
Less: Unamortized debt issuance costs			(4,336)						(3,481)
Less: Current Maturities of Long-term Debt, net			(83,339)						(57,548)
Total Long-term Debt, net			$	351,766					$	294,687

Future maturities of the outstanding Debt are as follows:

			Debt Principal Payments						Amortization of Debt Issuance Costs						Net Debt
Remainder of 2023			$	33,804					$	(341)					$	33,463
2024			75,403						(1,188)						74,215
2025			80,007						(956)						79,051
2026			61,146						(709)						60,437
2027			65,170						(525)						64,645
Thereafter			123,911						(617)						123,294
Total as of September 30, 2023			$	439,441					$	(4,336)					$	435,105

The fair value of Debt was $408,892 as of September 30, 2023 and $324,059 as of December 31, 2022. The fair value of the Company’s debt was based on the discounted amount of future cash flows using the Company’s end-of-period estimated incremental borrowing rate for similar obligations. The estimates were primarily based on Level 3 inputs.

7. STOCK-BASED COMPENSATION

Stock compensation expense was $1,039 and $487, during the three months ended September 30, 2023 and September 30, 2022, respectively; and $8,132 and $1,981 during the nine months ended September 30, 2023 and September 30, 2022, respectively. During the nine months ended September 30, 2023, all conditions associated with the time-based and performance-based options granted under the SCA Acquisition Holdings, LLC Amended and Restated Equity Incentive Plan were met. As a result, 100% of the performance-based stock options and all remaining unvested time-based options vested. Therefore, during the nine months ended September 30, 2023, the Company recognized an acceleration of stock-based compensation expense for the time-based and performance-based stock options totaling $2,960.

As of September 30, 2023, there was $7,267 of total unrecognized compensation expense related to Restricted Stock Units ("RSUs"). This unrecognized compensation is expected to be fully recognized over a weighted average period of approximately 2.1 years.

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8. INVESTMENTS

A summary of debt securities by major security type:

			September 30, 2023
			Amortized Cost						Gross Unrealized Gains						Gross Unrealized Losses						Fair Value
Available-for-Sale Securities: (1)
Municipal Debt Securities			$	17,071					$	—					$	(50)					$	17,021
Corporate Debt Securities			55,514						—						(209)						55,305
U.S. Government Agency Securities			74,591						—						(398)						74,193
Total			$	147,176					$	—					$	(657)					$	146,519

			December 31, 2022
			Amortized Cost						Gross Unrealized Gains						Gross Unrealized Losses						Fair Value
Available-for-Sale Securities: (1)
Municipal Debt Securities			$	47,897					$	16					$	(258)					$	47,655
Corporate Debt Securities			93,460						1						(683)						92,778
U.S. Government Agency Securities			32,326						2						(126)						32,202
Total			$	173,683					$	19					$	(1,067)					$	172,635

(1)			The Company also holds Certificates of Deposit that are included in Investments on the Condensed Consolidated Balance Sheets totaling $6,771 and $6,301 as of September 30, 2023 and December 31, 2022, respectively.

As of September 30, 2023, most of the Company's investments have been in a continuous unrealized loss position for less than 12 months. The unrealized losses were the result of increases in market interest rates and were not the result of a deterioration in the credit quality of the securities. As of September 30, 2023, the Company believes that any unrealized losses are recoverable prior to the investment's conversion to cash. As of September 30, 2023, the Company had the intent and ability to hold these investments until maturity. Therefore, the Company believes these losses to be temporary and no impairments have been recognized.

9.    FAIR VALUE MEASUREMENTS

The following table summarizes the assets measured at fair value on a recurring basis:

			September 30, 2023
			Level 1						Level 2						Level 3						Total
Cash & Cash Equivalents			$	26,967					$	—					$	—					$	26,967
Available-for-Sale Securities:
Municipal Debt Securities			—						17,021						—						17,021
Corporate Debt Securities			—						55,305						—						55,305
U.S. Government Agency Securities			—						74,193						—						74,193
Total Available-for-Sale Securities			—						146,519						—						146,519
Total Assets Measured at Fair Value on a Recurring Basis			$	26,967					$	146,519					$	—					$	173,486

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			December 31, 2022
			Level 1						Level 2						Level 3						Total
Cash & Cash Equivalents			$	73,727					$	18,359					$	—					$	92,086
Available-for-Sale Securities:
Municipal Debt Securities			—						47,655						—						47,655
Corporate Debt Securities			—						92,778						—						92,778
U.S. Government Agency Securities			—						32,202						—						32,202
Total Available-for-Sale Securities			—						172,635						—						172,635
Total Assets Measured at Fair Value on a Recurring Basis			$	73,727					$	190,994					$	—					$	264,721

10.    INCOME TAXES

The Company's effective tax rate for the three and nine months ended September 30, 2023 was 24.6% and 23.1%, respectively. The effective tax rate for the three and nine months ended September 30, 2022 was 17.4% and 28.4%, respectively. The effective tax rate represents a blend of federal and state taxes and includes the impact of certain nondeductible or nontaxable items. The effective tax rates for the three and nine months ended September 30, 2022 were primarily impacted by the non-deductible adjustments to the tax receivable liability related to the Tax Receivable Agreement (the "Tax Receivable Agreement" or "TRA").

Tax Receivable Agreement

The total TRA balance as of September 30, 2023 and December 31, 2022 was $101,020 and $103,800, of which $1,511 and $2,260 was current, respectively. The TRA liability is an estimate and actual amounts payable under the TRA could differ from this estimate. During the nine months ended September 30, 2023, the Company recorded an immaterial adjustment to the estimated TRA liability. During the nine months ended September 30, 2022, the Company recorded a $5,000 adjustment to increase the estimated TRA liability. During the nine months ended September 30, 2023, the Company made a payment of $2,425 to the pre-IPO stockholders (the “TRA holders”), which includes certain members of the Company's management and certain members of the Company's Board of Directors. The payment is included within Financing Activities on the Condensed Consolidated Statements of Cash Flows. Payments will be made in future periods as attributes that existed at the time of the IPO (the “Pre-IPO Tax Attributes”) are utilized.

11.    STOCKHOLDERS' EQUITY

Equity Transactions

Secondary Offerings

On February 15, 2023, the Company announced the commencement of a secondary public offering of 5,250,000 shares of its Common Stock by an affiliate of certain investment funds managed by affiliates of Apollo Global Management, Inc. ("the Apollo Stockholder"). The underwriters were given an option to purchase an additional 787,500 shares of Common Stock. In connection with the offering, the underwriters agreed to sell to the Company, and the Company agreed to purchase from the underwriters, an aggregate of 750,000 shares of Common Stock at a price of $19.75 per share, the same price at which the underwriters purchased the Common Stock from the selling stockholder, for a total of $14,812. The

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Company incurred offering expenses of $640 in connection with this offering and did not receive any of the proceeds.

Common Stock Repurchases

On October 31, 2022, the Company’s Board of Directors authorized a $50,000 stock repurchase program. On August 1, 2023, the Company's Board of Directors authorized the addition of $30,000 to the Company's existing stock repurchase program. The stock repurchase program has no expiration date and may be modified, suspended, or terminated at any time.

During the fourth quarter of 2022, the Company entered into a $25,000 Accelerated Share Repurchase Program. The Company received an initial delivery of 890,586 shares at an average price of $19.65 per share during the fourth quarter of 2022. The settlement of the program occurred during January 2023, upon which the Company received an additional 480,932 shares. In total, the Company repurchased 1,371,518 shares at an average price of $18.23 per share.

During the nine months ended September 30, 2023, the Company repurchased 3,307,541 shares of its Common Stock at an average price of $16.64 per share. The repurchases were part of a secondary public offering of the Company's shares by the Apollo Stockholder, as well as open market purchases completed in the second and third quarters.

As of September 30, 2023, the Company did not have any remaining amount of Board authorization to repurchase shares of its Common Stock. Subsequent to September 30, 2023, the Company's Board of Directors authorized the addition of $25,000 to the Company's existing stock repurchase program. The stock repurchase program has no expiration date and may be modified, suspended, or terminated at any time.

Amazon Agreement

On December 13, 2019, the Company signed a six-year contract (with two, two-year extension options, for a maximum term of 10 years) with Amazon to provide cargo services under the ATSA. In connection with the ATSA, the Company issued warrants to Amazon to purchase an aggregate of up to 9,482,606 shares of common stock at an exercise price of approximately $15.17 per share. During the nine months ended September 30, 2023 and 2022, 632,173 and 568,956 warrants vested, respectively. As of September 30, 2023 and 2022, the cumulative vested warrants held by Amazon were 3,034,441 and 2,212,616, respectively. The exercise period of these warrants is through the eighth anniversary of the issue date.

12.    COMMITMENTS AND CONTINGENCIES

The Company has contractual obligations and commitments primarily with regard to lease arrangements, repayment of debt (see Note 6), payments under the TRA (see Note 10), and probable future purchases of aircraft.

As of September 30, 2023, the Company had a commitment to lease three aircraft with deliveries spanning the fourth quarter of 2023 and the first quarter of 2024. The leases will each have annual lease payments of approximately $2,000 for six years.

As of September 30, 2023, the Company had a commitment to purchase an aircraft with an expected delivery in the fourth quarter of 2023. The purchase agreement calls for a base price of $27,500 that is subject to adjustment based on the aircraft's maintenance condition on the date of delivery.

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(Dollars in thousands, except per share and share amounts)

(Unaudited)

During the twelve months ended June 30, 2022, the compensation payable to an executive officer temporarily exceeded the restrictions on the payment of certain executive compensation under the Coronavirus Aid, Relief, and Economic Security Act ("CARES Act"). Once the issue was identified, the executive officer voluntarily rescinded the unvested portion of the equity grant that caused the executive’s compensation to exceed the CARES Act limit. At no point did the executive's cash compensation and equity awards that could be monetized exceed the CARES Act limit. The Company did not accrue any amounts related to this matter as of September 30, 2023. To the extent we are deemed to have failed to remain in full compliance with the CARES Act and the applicable rules and regulations thereunder, we may become subject to fines or other enforcement actions.

The Company is subject to various legal proceedings in the normal course of business and expenses legal costs as incurred. Management does not believe these proceedings will have a materially adverse effect on the Company.

13.    OPERATING SEGMENTS

The following tables present financial information for the Company’s two operating segments: Passenger and Cargo. Operating revenues for the Passenger segment includes amounts recorded within Other revenue.

			Three Months Ended September 30, 2023																		Three Months Ended September 30, 2022
			Passenger						Cargo						Consolidated						Passenger						Cargo						Consolidated
Operating Revenues			$	222,817					$	26,059					$	248,876					$	198,013					$	23,687					$	221,700
Non-Fuel Operating Expenses			142,045						26,646						168,691						117,788						23,678						141,466
Aircraft Fuel			61,157						22						61,179						64,763						80						64,843
Total Operating Expenses			203,202						26,668						229,870						182,551						23,758						206,309
Operating Income (Loss)			$	19,615					$	(609)					19,006						$	15,462					$	(71)					15,391
Interest Income															2,480																		1,610
Interest Expense															(11,403)																		(7,493)
Other, net															(15)																		3,422
Income Before Income Tax															$	10,068																	$	12,930

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SUN COUNTRY AIRLINES HOLDINGS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Dollars in thousands, except per share and share amounts)

(Unaudited)

			Nine Months Ended September 30, 2023																		Nine Months Ended September 30, 2022
			Passenger						Cargo						Consolidated						Passenger						Cargo						Consolidated
Operating Revenues			$	729,640					$	74,437					$	804,077					$	601,360					$	65,930					$	667,290
Non-Fuel Operating Expenses			428,889						78,984						507,873						355,894						64,470						420,364
Aircraft Fuel			185,770						59						185,829						206,254						80						206,334
Total Operating Expenses			614,659						79,043						693,702						562,148						64,550						626,698
Operating Income (Loss)			$	114,981					$	(4,606)					110,375						$	39,212					$	1,380					40,592
Interest Income															7,766																		2,166
Interest Expense															(31,272)																		(23,097)
Other, net															(370)																		(5,156)
Income Before Income Tax															$	86,499																	$	14,505

14.    SUBSEQUENT EVENTS

The Company evaluated subsequent events for the period from the Balance Sheet date through November 7, 2023, the date that the Condensed Consolidated Financial Statements were available to be issued.

Subsequent to September 30, 2023, the Company's Board of Directors authorized the addition of $25,000 to the Company's existing stock repurchase program. The stock repurchase program has no expiration date and may be modified, suspended, or terminated at any time.

* * * * * *

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MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

(Dollars in thousands, except per share amounts)

(Unaudited)

ITEM 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Unless otherwise indicated, the terms “Sun Country,” “we,” “us” and “our” refer to Sun Country Airlines Holdings, Inc., and its subsidiaries.

Forward-Looking Statements

The following discussion and analysis presents factors that had a material effect on our results of operations during the nine months ended September 30, 2023 and 2022. Also discussed is our financial position as of September 30, 2023 and December 31, 2022. This section should be read in conjunction with our unaudited Condensed Consolidated Financial Statements and related notes appearing elsewhere in this Quarterly Report on Form 10-Q and our audited Consolidated Financial Statements and related notes and discussion under the heading, “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in our 2022 10-K. This discussion contains forward-looking statements that involve risk, assumptions and uncertainties, such as statements of our plans, objectives, expectations, intentions and forecasts. Our actual results and the timing of selected events could differ materially from those discussed in these forward-looking statements as a result of several factors, including those set forth under the section of this report titled, “Risk Factors” and elsewhere in this report. You should carefully read the “Risk Factors” included herein and in our 2022 10-K and in our Quarterly Report on Form 10-Q for the periods ended March 31, 2023 ("March 31, 2023 10-Q") and June 30, 2023 ("June 30, 2023 10-Q") to gain an understanding of the important factors that could cause actual results to differ materially from our forward-looking statements.

Business Overview

Sun Country is a new breed of hybrid low-cost air carrier that dynamically deploys shared resources across our synergistic scheduled service, charter, and cargo businesses. By doing so, we believe we are able to generate high growth, high margins and strong cash flows with greater resilience than other passenger airlines. Based in Minnesota, we focus on serving leisure and visiting friends and relatives ("VFR") passengers and charter customers and providing crew, maintenance and insurance (“CMI”) services, with flights throughout the U.S. and to destinations in Canada, Mexico, Central America and the Caribbean. We share resources, such as flight crews, across our scheduled service, charter and cargo business lines with the objective of generating higher returns and margins and mitigating the seasonality of our route network. We optimize capacity allocation by market, time of year, day of week and line of business by shifting flying to markets during periods of peak demand and away from markets during periods of low demand with far greater frequency than nearly all other large U.S. passenger airlines. We believe our flexible business model generates higher returns and margins while also providing greater resiliency to economic and industry downturns than a traditional scheduled service carrier.

Our scheduled service business combines low costs with a high-quality product to generate higher Total Revenue per Available Seat Mile (“TRASM”) than Ultra Low-Cost Carriers ("ULCCs", which include Allegiant Travel Company, Frontier Airlines and Spirit Airlines) while maintaining lower Adjusted Cost per Available Seat Mile (“CASM”) than Low Cost Carriers ("LCCs", which include Southwest Airlines and JetBlue Airways), resulting in best-in-class unit profitability. Our business includes many cost characteristics of ULCCs, such as an unbundled product (which means we offer a base fare and allow customers to purchase Ancillary products and services for an additional fee), point-to-point service and a single-family fleet of Boeing 737-NG aircraft, which allow us to maintain a cost base comparable to these ULCCs. However, we offer a high-quality product that we believe is superior to ULCCs and consistent with that of LCCs. For example, our product includes more average legroom than ULCCs, complimentary soft drinks and juices, complimentary in-flight entertainment, and in-seat power, none of which are offered by other ULCCs.

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MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

(Dollars in thousands, except per share amounts)

(Unaudited)

Our charter business, which is one of the largest narrow body charter operations in the United States, is a key component of our strategy because it provides both inherent diversification and downside protection, and because it is synergistic with our other businesses. Our charter business has several favorable characteristics, including: large repeat customers, more stable demand than scheduled service flying, and the ability to pass through certain costs, including fuel. Our diverse charter customer base includes casino operators, the U.S. Department of Defense, and collegiate and professional sports teams. Our charter business includes ad hoc, repeat, short-term and long-term service contracts with pass-through fuel arrangements and annual rate escalations. Most of our business is non-cyclical because the U.S. Department of Defense and sports teams continue to fly during normal economic downturns and our casino contracts are long-term in nature.

On December 13, 2019, we signed the ATSA with Amazon to provide air cargo services. Flying under the ATSA began in May 2020 and we are currently flying 12 Boeing 737-800 cargo aircraft for Amazon. Our CMI service is asset-light from a Sun Country perspective as Amazon supplies the aircraft and covers many of the operating expenses, including fuel, and provides all cargo loading and unloading services. We are responsible for flying the aircraft under our air carrier certificate, crew, aircraft line maintenance and insurance, all of which allow us to leverage our existing operational expertise from our passenger businesses. Our cargo business also enables us to leverage certain assets, capabilities, and fixed costs to enhance profitability and promote growth across our Company.

Operations in Review

We believe a key component of our success is establishing Sun Country as a high growth, low-cost carrier in the United States by attracting customers with low fares and garnering repeat business by delivering a high-quality passenger experience, offering state-of-the-art interiors, complimentary streaming of in-flight entertainment to passenger devices, seat reclining and seat-back power in all of our aircraft.

Pilot training throughput issues, fuel price volatility due to market conditions and geopolitical events, and the impact of macroeconomic conditions, including inflationary pressures, continue to impact the Company, as well as the industry. In the current demand environment, the Company has been able to maintain relatively strong performance by relying on its core competency of optimizing capacity allocation by market, time of year, day of week and line of business by appropriately allocating capacity to best meet demand. Further, our diversified business model, which includes a focus on leisure and VFR passengers, charter and e-commerce related cargo service, is unique in the airline sector and mitigates the impact of economic and industry downturns on our business when compared with other large U.S. passenger airlines. This strategy has allowed the Company to offset a majority of these additional costs. Further, our Charter and Cargo businesses have the ability to pass on certain costs, including fuel. Our flexible business model gives us the ability to adjust our services in response to market conditions, which is targeted at producing the highest possible returns for Sun Country.

For more information on our business and strategic advantages, see the "Business" and “Management’s Discussion and Analysis of Operations” sections within Part I, Item 1 and Part II, Item 7, respectively, in our 2022 10-K.

Components of Operations

For a more detailed discussion on the nature of transactions included in the separate line items of our Condensed Consolidated Statement of Operations, see “Management’s Discussion and Analysis of Operations” in Part II, Item 7 in our 2022 10-K.

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MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

(Dollars in thousands, except per share amounts)

(Unaudited)

Operating Statistics

			Three Months Ended September 30, 2023 (1)																								Three Months Ended September 30, 2022 (1)
			Scheduled Service						Charter						Cargo						Total						Scheduled Service						Charter						Cargo						Total
Departures (2)			6,878						2,688						3,432						13,128						5,611						2,359						3,043						11,072
Block hours (2)			19,935						5,274						9,287						34,874						16,947						4,623						8,739						30,492
Aircraft miles (2)			7,776,676						1,841,921						3,599,149						13,341,868						6,777,764						1,629,061						3,399,149						11,864,450
Available seat miles (ASMs) (thousands) (2)			1,446,462						322,722												1,791,485						1,256,755						286,189												1,553,483
Total revenue per ASM (TRASM) (cents) (3)			11.72						14.70												12.11						12.34						14.99												12.75
Average passenger aircraft during the period (4)																					42.0																								36.8
Passenger aircraft at end of period (4)																					42																								42
Cargo aircraft at end of period																					12																								12
Aircraft Held for Operating Lease																					5																								—
Average daily aircraft utilization (hours) (4)																					6.6																								6.4
Average stage length (miles)																					1,005																								1,055
Revenue passengers carried (5)			1,090,172																								908,967
Revenue passenger miles (RPMs) (thousands) (5)			1,252,583																								1,101,011
Load factor (5)			86.6		%																						87.6		%
Average base fare per passenger (5)			$	88.50																							$	112.44
Ancillary revenue per passenger (5)			$	64.61																							$	55.29
Total fare per passenger (5)			$	153.11																							$	167.73
Charter revenue per block hour (5)									$	8,994																							$	9,280
Fuel gallons consumed (thousands) (2)			15,536						3,513												19,262						13,352						3,056												16,509
Fuel cost per gallon, excluding indirect fuel credits																					$	3.19																							$	3.93
Employees at end of period																					2,692																								2,354
Cost per available seat mile (CASM) (cents) (6)																					12.83																								13.28
Adjusted CASM (cents) (7)																					7.75																								7.55

______________________

(1)Certain operating statistics and metrics are not presented as they are not calculable or are not utilized by management.

(2)Total System operating statistics for Departures, Block hours, Aircraft miles, ASMs and Fuel gallons consumed include amounts related to flights operated for maintenance; therefore, the Total System amounts are higher than the sum of Scheduled Service, Charter Service and Cargo amounts.

(3)Scheduled Service TRASM includes Schedule Service revenue, Ancillary revenue, and ASM generating revenue classified within Other Revenue on the Condensed Consolidated Statements of Operations.

(4)Scheduled Service and Charter Service utilize the same fleet of aircraft. Aircraft counts and utilization metrics are shown on a system basis only.

(5)Passenger-related statistics and metrics are shown only for Scheduled Service. Charter Service revenue is driven by flight statistics.

(6)CASM is a key airline cost metric. CASM is defined as operating expenses divided by total available seat miles.

(7)Adjusted CASM is a non-GAAP measure derived from CASM by excluding fuel costs, costs related to our cargo operations, and certain other costs that are unrelated to our airline operations.

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MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

(Dollars in thousands, except per share amounts)

(Unaudited)

Operating Statistics

			Nine Months Ended September 30, 2023(1)																								Nine Months Ended September 30, 2022 (1)
			Scheduled Service						Charter						Cargo						Total						Scheduled Service						Charter						Cargo						Total
Departures (2)			19,456						7,816						9,643						37,295						17,512						6,214						8,310						32,246
Block hours (2)			61,438						15,994						25,633						104,188						57,585						13,000						23,891						95,052
Aircraft miles (2)			24,139,614						5,522,791						9,732,308						39,758,210						23,112,200						4,630,257						9,209,477						37,113,673
Available seat miles (ASMs) (thousands) (2)			4,489,968						961,953												5,516,826						4,284,403						800,698												5,114,134
Total revenue per ASM (TRASM) (cents) (3)			12.80						14.89												13.01						11.27						14.80												11.76
Average passenger aircraft during the period (4)																					41.8																								35.2
Passenger aircraft at end of period (4)																					42																								42
Cargo aircraft at end of period																					12																								12
Aircraft Held for Operating Lease																					5																								—
Average daily aircraft utilization (hours) (4)																					6.9																								7.4
Average stage length (miles)																					1,088																								1,169
Revenue passengers carried (5)			3,093,536																								2,715,707
Revenue passenger miles (RPMs) (thousands) (5)			3,900,975																								3,565,501
Load factor (5)			86.9		%																						83.2		%
Average base fare per passenger (5)			$	116.57																							$	123.24
Ancillary revenue per passenger (5)			$	66.47																							$	51.39
Total fare per passenger (5)			$	183.04																							$	174.63
Charter revenue per block hour (5)									$	8,956																							$	9,118
Fuel gallons consumed (thousands) (2)			48,046						11,063												59,734						44,940						9,085												54,322
Fuel cost per gallon, excluding indirect fuel credits																					$	3.12																							$	3.81
Employees at end of period																					2,692																								2,354
Cost per available seat mile (CASM) (cents) (6)																					12.57																								12.25
Adjusted CASM (cents) (7)																					7.56																								6.91

______________________

(1)Certain operating statistics and metrics are not presented as they are not calculable or are not utilized by management.

(2)Total System operating statistics for Departures, Block hours, Aircraft miles, ASMs and Fuel gallons consumed include amounts related to flights operated for maintenance; therefore, the Total System amounts are higher than the sum of Scheduled Service, Charter Service and Cargo amounts.

(3)Scheduled Service TRASM includes Schedule Service revenue, Ancillary revenue, and ASM generating revenue classified within Other Revenue on the Condensed Consolidated Statements of Operations.

(4)Scheduled Service and Charter Service utilize the same fleet of aircraft. Aircraft counts and utilization metrics are shown on a system basis only.

(5)Passenger-related statistics and metrics are shown only for Scheduled Service. Charter Service revenue is driven by flight statistics.

(6)CASM is a key airline cost metric. CASM is defined as operating expenses divided by total available seat miles.

(7)Adjusted CASM is a non-GAAP measure derived from CASM by excluding fuel costs, costs related to our cargo operations, and certain other costs that are unrelated to our airline operations.

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SUN COUNTRY AIRLINES HOLDINGS, INC

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

(Dollars in thousands, except per share amounts)

(Unaudited)

Results of Operations

For the Three Months Ended September 30, 2023 and 2022

			Three Months Ended September 30,												$ Change						% Change
			2023						2022
Operating Revenues:
Scheduled Service			$	96,483					$	102,200					$	(5,717)					(6)		%
Charter Service			47,437						42,899						4,538						11		%
Ancillary			70,435						50,261						20,174						40		%
Passenger			214,355						195,360						18,995						10		%
Cargo			26,059						23,687						2,372						10		%
Other			8,462						2,653						5,809						219		%
Total Operating Revenues			248,876						221,700						27,176						12		%
Operating Expenses:
Aircraft Fuel			61,179						64,843						(3,664)						(6)		%
Salaries, Wages, and Benefits			72,541						58,661						13,880						24		%
Aircraft Rent			22						1,949						(1,927)						(99)		%
Maintenance			15,330						11,018						4,312						39		%
Sales and Marketing			7,569						6,827						742						11		%
Depreciation and Amortization			22,762						17,181						5,581						32		%
Ground Handling			9,382						8,669						713						8		%
Landing Fees and Airport Rent			13,958						12,926						1,032						8		%
Other Operating, net			27,127						24,235						2,892						12		%
Total Operating Expenses			229,870						206,309						23,561						11		%
Operating Income			19,006						15,391						3,615						23		%
Non-operating Income (Expense):
Interest Income			2,480						1,610						870						54		%
Interest Expense			(11,403)						(7,493)						(3,910)						52		%
Other, net			(15)						3,422						(3,437)						(100)		%
Total Non-operating Expense, net			(8,938)						(2,461)						(6,477)						263		%
Income Before Income Tax			10,068						12,930						(2,862)						(22)		%
Income Tax Expense			2,477						2,253						224						10		%
Net Income			$	7,591					$	10,677					$	(3,086)					(29)		%

"NM" stands for not meaningful

Total Operating Revenues increased $27,176, or 12%, to $248,876 for the three months ended September 30, 2023 as compared to the three months ended September 30, 2022. The revenue increase was largely driven by a 14% increase in average passenger aircraft, which led to a 20% increase in passenger segment departures and a 15% increase in passenger segment ASMs. The volume increases offset the decrease to average total fare per passenger of $14.62, or 9%, to $153.11 for the three months ended September 30, 2023, as compared to the three months ended September 30, 2022. Total Operating Revenues for the three months ended

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SUN COUNTRY AIRLINES HOLDINGS, INC

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

(Dollars in thousands, except per share amounts)

(Unaudited)

September 30, 2023 benefited from the $5,870 of rental revenue associated with the five Aircraft Held for Operating Lease acquired during the first half of 2023.

Scheduled Service. Scheduled Service revenue decreased $5,717, or 6%, to $96,483 for the three months ended September 30, 2023 as compared to the three months ended September 30, 2022. The table below presents select operating data for scheduled service, expressed as quarter-over-quarter changes:

			Three Months Ended September 30,												Change						% Change
			2023						2022
Departures			6,878						5,611						1,267						23		%
Passengers			1,090,172						908,967						181,205						20		%
Average base fare per passenger			$	88.50					$	112.44					$	(23.94)					(21)		%
RPMs (thousands)			1,252,583						1,101,011						151,572						14		%
ASMs (thousands)			1,446,462						1,256,755						189,707						15		%
TRASM (cents)			11.72						12.34						(0.62)						(5)		%
Passenger load factor			86.6		%				87.6		%				(1.0)		pts				N/A

The quarter-over-quarter increases in certain Scheduled Service operating data were primarily the result of an increase in capacity and materially consistent demand. Scheduled Service departures and ASMs increased by 23% and 15%, respectively, as a result of the 14% quarter-over-quarter increase in the average passenger aircraft for the period. This increase in capacity drove the 20% increase in passengers, while TRASM and load factor had decreases quarter-over-quarter. The decrease quarter-over-quarter was further impacted by the rate increase for an Ancillary product, which reclassified portions of revenue from Scheduled Service to Ancillary after its introduction in the second quarter of 2022. The quarter-over-quarter increase in rate for this Ancillary product decreased Scheduled Service revenue by $24,037 for the three months ended September 30, 2023, as compared to $11,633 during the three months ended September 30, 2022.

Charter Service. Charter Service revenue increased $4,538, or 11%, to $47,437 for the three months ended September 30, 2023, as compared to the three months ended September 30, 2022. The increase in Charter service revenue was driven by a 14% increase in both Charter Service block hours and departures as a result of increased activity with long-term charter customers. Charter Service revenue per block hour was materially consistent quarter-over-quarter.

Ancillary. Ancillary revenue increased $20,174, or 40%, to $70,435 for the three months ended September 30, 2023, as compared to the three months ended September 30, 2022. Ancillary revenue was $64.61 per passenger in the three months ended September 30, 2023, up $9.32 or 17%, as compared to the three months ended September 30, 2022. The increase in Scheduled Service passengers during the period resulted in a higher volume of sales for air travel-related services, such as baggage fees, seat selection and upgrade fees, priority check-in and boarding fees, itinerary service fees, other fees and on-board sales. The increase in revenue was further supported by rate increases for our Ancillary products. The change quarter-over-quarter was also impacted by an increase in rate for an Ancillary product, which reclassified portions of revenue from Scheduled Service to Ancillary after its introduction in the second quarter of 2022. The increase in rate increased revenue by $24,037 for the three months ended September 30, 2023, as compared to $11,633 during the three months ended September 30, 2022.

Cargo. Revenue from Cargo services increased $2,372, or 10%, to $26,059 for the three months ended September 30, 2023, as compared to the three months ended September 30, 2022. The increase was primarily driven by a 13% and 6% quarter-over-quarter increase in departures and block hours, respectively. Revenue

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(Dollars in thousands, except per share amounts)

(Unaudited)

during the three months ended September 30, 2023 also benefited from the annual rate escalation included in the ATSA, which went into effect on December 13, 2022.

Other. Other revenue increased $5,809, or 219%, to $8,462 for the three months ended September 30, 2023, as compared to the three months ended September 30, 2022. Other revenue benefited from the $5,870 of rental revenue associated with the five Aircraft Held for Operating Lease acquired during the first half of 2023.

Operating Expenses

Aircraft Fuel. We believe Aircraft Fuel expense, excluding indirect fuel credits, is the best measure of the effect of fuel prices on our business as it consists solely of direct fuel expenses that are related to our operations and is consistent with how management analyzes our operating performance. This measure is defined as GAAP Aircraft Fuel expense, excluding indirect fuel credits that are recognized within Aircraft Fuel expense, but are not directly related to our Fuel Cost per Gallon.

The primary components of Aircraft Fuel expense are shown in the following table:

			Three Months Ended September 30,												Change						% Change
			2023						2022
Total Aircraft Fuel Expense			$	61,179					$	64,843					$	(3,664)					(6)		%
Indirect Fuel Credits			175						71						104						146		%
Aircraft Fuel Expense, Excluding Indirect Fuel Credits			$	61,354					$	64,914					$	(3,560)					(5)		%
Fuel Gallons Consumed (thousands)			19,262						16,509						2,753						17		%
Fuel Cost per Gallon, Excluding Indirect Fuel Credits			$	3.19					$	3.93					$	(0.74)					(19)		%

Aircraft Fuel expense decreased 6% quarter-over-quarter primarily due to a 19% decrease in the average fuel cost per gallon, partially offset by a 17% increase in consumption. The price of fuel during the three months ended September 30, 2022 was significantly impacted by global geopolitical events.

Salaries, Wages, and Benefits. Salaries, Wages, and Benefits expense increased $13,880, or 24%, to $72,541 for the three months ended September 30, 2023, as compared to the three months ended September 30, 2022. The quarter-over-quarter increase in Salaries, Wages, and Benefits was impacted by a 14% increase in employee headcount and increased per unit costs for pilots and flight crews to support the current flight schedule.

Aircraft Rent. Aircraft Rent expense decreased $1,927, or 99%, to $22 for the three months ended September 30, 2023, as compared to the three months ended September 30, 2022. Aircraft Rent expense decreased primarily due to the composition of our aircraft fleet shifting from aircraft under operating leases (expense is recorded within Aircraft Rent) to owned aircraft or finance leases (expense is recorded through Depreciation and Amortization and Interest Expense). As of September 30, 2023 and 2022, we operated no and two aircraft under operating leases, respectively. Accordingly, Aircraft Rent expense is expected to be nominal in future periods. The acquisition of new aircraft through operating leases is at the discretion of management.

Maintenance. Maintenance expense increased $4,312, or 39%, to $15,330 for the three months ended September 30, 2023, as compared to the three months ended September 30, 2022. The increase in Maintenance expense was primarily driven by the timing of heavy maintenance events and unscheduled

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repairs, as well as higher maintenance costs due to the quarter-over-quarter increase in the size of our fleet and operations.

Sales and Marketing. Sales and Marketing expense increased $742, or 11%, to $7,569 for the three months ended September 30, 2023, as compared to the three months ended September 30, 2022. The change quarter-over-quarter was primarily driven by a $415 increase in credit card processing fees, as a result of the 20% increase in Scheduled Service passengers.

Depreciation and Amortization. Depreciation and Amortization expense increased $5,581, or 32%, to $22,762 for the three months ended September 30, 2023, as compared to the three months ended September 30, 2022. The increase was primarily due to the impact of a change in the composition of our aircraft fleet that results in an increased number of owned aircraft and aircraft under finance leases (the expense is recorded as Depreciation and Amortization and Interest Expense). As of September 30, 2023 and 2022, there were 47 and 40 aircraft that were owned or under finance leases, respectively.

Ground Handling. Ground Handling expense increased $713, or 8%, to $9,382 for the three months ended September 30, 2023, as compared to the three months ended September 30, 2022. The increase was primarily driven by the 20% increase in Passenger segment departures as a result of our expanding operations, as well as rate increases due to market pressures.

Landing Fees and Airport Rent. Landing Fees and Airport Rent increased $1,032, or 8%, to $13,958 for the three months ended September 30, 2023, as compared to the three months ended September 30, 2022. The increase was primarily driven by the 20% increase in Passenger segment departures as a result of our expanding operations, as well as rate increases due to market pressures.

Other Operating, net. Other operating, net increased $2,892, or 12%, to $27,127 for the three months ended September 30, 2023, as compared to the three months ended September 30, 2022, primarily due to increases in costs associated with our operational growth, as well as an increase in third-party vendor spend.

Non-operating Income (Expense)

Interest Income. Interest income increased $870, or 54%, to $2,480 for the three months ended September 30, 2023, as compared to the three months ended September 30, 2022. The increase was primarily due to increases in the amount of investments held and higher interest rates.

Interest Expense. Interest expense increased $3,910, or 52%, to $11,403 for the three months ended September 30, 2023, as compared to the three months ended September 30, 2022. The change was primarily due to a 19% increase in owned aircraft that were financed or refinanced with debt proceeds. This includes the term loan credit facility for the purpose of financing the five Aircraft Held for Operating Lease purchased during the first half of 2023, which was financed in a higher interest rate environment. For more information on the Company's Debt, see Note 6 of the Condensed Consolidated Financial Statements included in Part I, Item I of this report.

Other, net. Other, net decreased $3,437, or 100% to a net expense of $15 for the three months ended September 30, 2023, as compared to a net benefit of $3,422 for the three months ended September 30, 2022. The decrease was primarily due to the $3,500 adjustment to the estimated TRA liability in the prior year.

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Income Tax. The Company's effective tax rate for the three months ended September 30, 2023 was 24.6% compared to 17.4% for the three months ended September 30, 2022. The increase in the effective tax rate was primarily due to the $3,500 non-deductible adjustment of the TRA liability in the prior period, partially offset by stock compensation benefits. For more information on the TRA liability, see Note 10 of the Condensed Consolidated Financial Statements included in Part I, Item I of this report.

Results of Operations

For the Nine Months Ended September 30, 2023 and 2022

			Nine Months Ended September 30,												$ Change						% Change
			2023						2022
Operating Revenues:
Scheduled Service			$	360,607					$	334,679					$	25,928					8		%
Charter Service			143,250						118,526						24,724						21		%
Ancillary			205,633						139,548						66,085						47		%
Passenger			709,490						592,753						116,737						20		%
Cargo			74,437						65,930						8,507						13		%
Other			20,150						8,607						11,543						134		%
Total Operating Revenues			804,077						667,290						136,787						20		%
Operating Expenses:
Aircraft Fuel			185,829						206,334						(20,505)						(10)		%
Salaries, Wages, and Benefits			223,890						178,576						45,314						25		%
Aircraft Rent			2,281						7,347						(5,066)						(69)		%
Maintenance			44,311						35,794						8,517						24		%
Sales and Marketing			26,005						23,336						2,669						11		%
Depreciation and Amortization			64,577						49,364						15,213						31		%
Ground Handling			28,299						24,838						3,461						14		%
Landing Fees and Airport Rent			36,847						32,708						4,139						13		%
Other Operating, net			81,663						68,401						13,262						19		%
Total Operating Expenses			693,702						626,698						67,004						11		%
Operating Income			110,375						40,592						69,783						172		%
Non-operating Income (Expense):
Interest Income			7,766						2,166						5,600						259		%
Interest Expense			(31,272)						(23,097)						(8,175)						35		%
Other, net			(370)						(5,156)						4,786						(93)		%
Total Non-operating Expense, net			(23,876)						(26,087)						2,211						(8)		%
Income Before Income Tax			86,499						14,505						71,994						496		%
Income Tax Expense			19,963						4,113						15,850						385		%
Net Income			$	66,536					$	10,392					$	56,144					540		%

"NM" stands for not meaningful

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Total Operating Revenues increased $136,787, or 20%, to $804,077 for the nine months ended September 30, 2023 as compared to the nine months ended September 30, 2022. The revenue increase was largely driven by an increase in demand for our passenger service offerings during the nine months ended September 30, 2023, as compared to the nine months ended September 30, 2022. The increase in demand resulted in an increase to average total fare per passenger of $8.41, or 5%, to $183.04 for the nine months ended September 30, 2023 as compared to 2022, as well as a 3.7 percentage point increase in Scheduled Service passenger load factor over the same period. The revenue increase was further benefited from a 19% increase in average passenger aircraft, which increased capacity.

Scheduled Service. Scheduled Service revenue increased $25,928, or 8%, to $360,607 for the nine months ended September 30, 2023 as compared to the nine months ended September 30, 2022. The table below presents select operating data for Scheduled Service, expressed as year-over-year changes:

			Nine Months Ended September 30,												Change						% Change
			2023						2022
Departures			19,456						17,512						1,944						11		%
Passengers			3,093,536						2,715,707						377,829						14		%
Average base fare per passenger			$	116.57					$	123.24					$	(6.67)					(5)		%
RPMs (thousands)			3,900,975						3,565,501						335,474						9		%
ASMs (thousands)			4,489,968						4,284,403						205,565						5		%
TRASM (cents)			12.80						11.27						1.53						14		%
Passenger load factor			86.9		%				83.2		%				3.7		pts				N/A

The year-over-year increases in certain Scheduled Service operating data were primarily the result of an increase in demand year-over-year. The year-over-year increase in demand is demonstrated by a 14% increase in passengers, a 3.7 percentage point increase in passenger load factor, and a 14% increase in TRASM. The year-over-year Scheduled Service revenue increase is slightly offset by the introduction of a new Ancillary product during the second quarter of 2022, which reclassified approximately $62,635 of revenue from Scheduled Service to Ancillary during the nine months ended September 30, 2023, as compared to $17,184 during the nine months ended September 30, 2022. This reclassification was further impacted by an increase in rate for the Ancillary product.

Charter Service. Charter Service revenue increased $24,724, or 21%, to $143,250 for the nine months ended September 30, 2023, as compared to the nine months ended September 30, 2022. The increase in Charter Service revenue was driven by a 26% and 23% increase in Charter Service departures and block hours, respectively. Charter Service revenue per block hour was materially consistent year-over-year.

Ancillary. Ancillary revenue increased $66,085, or 47%, to $205,633 for the nine months ended September 30, 2023, as compared to the nine months ended September 30, 2022. Ancillary revenue was $66.47 per passenger in the nine months ended September 30, 2023, up $15.08 or 29%, from the nine months ended September 30, 2022. Ancillary revenue benefited from the introduction of a new Ancillary product during the second quarter of 2022, which reclassified approximately $62,635 of revenue from Scheduled Service to Ancillary during the nine months ended September 30, 2023, as compared to $17,184 during the nine months ended September 30, 2022. The 14% increase in Scheduled Service passengers during the period resulted in greater sales of air travel-related services, such as baggage fees, seat selection and upgrade fees, priority check-in and boarding fees, itinerary service fees, other fees and on-board sales. The increase in Ancillary revenue was further supported by rate increases for our Ancillary products.

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Cargo. Revenue from Cargo services increased $8,507, or 13%, to $74,437 for the nine months ended September 30, 2023, as compared to the nine months ended September 30, 2022. The increase was primarily driven by an 16% and 7% increase in Cargo departures and block hours, respectively. Revenue during the nine months ended September 30, 2023 also benefited from the annual rate escalation included in the ATSA, which went into effect on December 13, 2022.

Other. Other revenue increased $11,543, or 134%, to $20,150 for the nine months ended September 30, 2023, as compared to the nine months ended September 30, 2022. Other revenue in the current year benefited from $11,742 of rental revenue associated with the five Aircraft Held for Operating Lease acquired during the first half of 2023.

Operating Expenses

Aircraft Fuel. We believe Aircraft Fuel expense, excluding indirect fuel credits, is the best measure of the effect of fuel prices on our business as it consists solely of direct fuel expenses that are related to our operations and is consistent with how management analyzes our operating performance. This measure is defined as GAAP Aircraft Fuel expense, excluding indirect fuel credits that are recognized within Aircraft Fuel expense, but are not directly related to our Fuel Cost per Gallon.

The primary components of Aircraft Fuel expense are shown in the following table:

			Nine Months Ended September 30,												Change						% Change
			2023						2022
Total Aircraft Fuel Expense			$	185,829					$	206,334					$	(20,505)					(10)		%
Indirect Fuel Credits			827						598						229						38		%
Aircraft Fuel Expense, Excluding Indirect Fuel Credits			$	186,656					$	206,932					$	(20,276)					(10)		%
Fuel Gallons Consumed (thousands)			59,734						54,322						5,412						10		%
Fuel Cost per Gallon, Excluding Indirect Fuel Credits			$	3.12					$	3.81					$	(0.69)					(18)		%

Aircraft Fuel expense decreased by 10% year-over-year primarily due to an 18% decrease in the average fuel cost per gallon, slightly offset by a 10% increase in consumption. The price of fuel during the nine months ended September 30, 2022 was significantly impacted by global geopolitical events.

Salaries, Wages, and Benefits. Salaries, Wages, and Benefits expense increased $45,314, or 25%, to $223,890 for the nine months ended September 30, 2023, as compared to the nine months ended September 30, 2022. The year-over-year increase in Salaries, Wages, and Benefits was due to a 14% increase in employee headcount, an acceleration of stock-based compensation expense recognized during the current year for our time-based and performance-based stock options, and increased per unit costs for pilots and flight crews to support the current flight schedule. For more information on the acceleration of stock-based compensation for our time-based and performance-based stock options, see Note 7 of the Condensed Consolidated Financial Statements included in Part I, Item I of this report.

Aircraft Rent. Aircraft Rent expense decreased $5,066, or 69%, to $2,281 for the nine months ended September 30, 2023, as compared to the nine months ended September 30, 2022. Aircraft Rent expense decreased primarily due to the composition of our aircraft fleet continuing to shift from aircraft under operating leases (expense is recorded within Aircraft Rent) to owned aircraft or finance leases (expense is recorded through Depreciation and Amortization and Interest Expense). As of September 30, 2023 and 2022, we

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operated no and two aircraft under operating leases, respectively. Accordingly, Aircraft Rent expense is expected to be nominal in future periods. The acquisition of new aircraft through operating leases is at the discretion of management.

Maintenance. Maintenance expense increased $8,517, or 24%, to $44,311 for the nine months ended September 30, 2023, as compared to the nine months ended September 30, 2022. The increase in Maintenance expense was primarily driven by higher maintenance costs due to the year-over-year increase in the size of our fleet and operations, as well as an increase in heavy maintenance events and unscheduled repair events.

Sales and Marketing. Sales and Marketing expense increased $2,669, or 11%, to $26,005 for the nine months ended September 30, 2023, as compared to the nine months ended September 30, 2022. The year-over-year increase was driven by approximately $2,700 increase in credit card processing and other travel agent fees, as a result of the 14% increase in Scheduled Service passengers. These increases were partially offset by a decrease in global distribution system expenses due to a new indirect distribution method that reduced the fees paid for bookings.

Depreciation and Amortization. Depreciation and Amortization expense increased $15,213, or 31%, to $64,577 for the nine months ended September 30, 2023, as compared to the nine months ended September 30, 2022. The increase was primarily due to the impact of a change in the composition of our aircraft fleet that results in an increased number of owned aircraft and aircraft under finance leases (the expense is recorded as Depreciation and Amortization and Interest Expense). As of September 30, 2023 and 2022, there were 47 and 40 aircraft that were owned or under finance leases, respectively.

Ground Handling. Ground Handling expense increased $3,461, or 14%, to $28,299 for the nine months ended September 30, 2023, as compared to the nine months ended September 30, 2022. The increase was primarily driven by the 15% increase in Passenger segment departures as a result of our expanding operations, as well as rate increases due to inflationary and market pressures.

Landing Fees and Airport Rent. Landing Fees and Airport Rent increased $4,139, or 13%, to $36,847 for the nine months ended September 30, 2023, as compared to the nine months ended September 30, 2022. The increase was primarily driven by the 15% increase in Passenger segment departures as a result of our expanding operations, as well as rate increases due to inflationary and market pressures.

Other Operating, net. Other operating, net increased $13,262, or 19%, to $81,663 for the nine months ended September 30, 2023, as compared to the nine months ended September 30, 2022, primarily due to increased departures, which resulted in higher crew costs and catering expenses.

Non-operating Income (Expense)

Interest Income. Interest income increased by $5,600, or 259%, to $7,766 for the nine months ended September 30, 2023. The increase was primarily due to the change in our investment strategy, which led to the purchase of debt securities in May 2022. The continued rise in interest rates also contributed to the increase over the prior year.

Interest Expense. Interest expense increased $8,175, or 35%, to $31,272 for the nine months ended September 30, 2023, as compared to the nine months ended September 30, 2022. The change was primarily due to a 19% increase in owned aircraft that were financed or refinanced with debt proceeds. This includes the term loan credit facility for the purpose of financing the five Aircraft Held for Operating Lease purchased during the first half of 2023, which was financed in a higher interest rate environment. The year-over-year increase was partially offset by a $1,557 loss on extinguishment of debt incurred during the nine months ended September

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(Unaudited)

30, 2022 related to the repayment of the DDTL. For more information on the Company's Debt, see Note 6 of the Condensed Consolidated Financial Statements included in Part I, Item I of this report.

Other, net. Other, net decreased $4,786, or 93% to a net expense of $370 for the nine months ended September 30, 2023, as compared to the nine months ended September 30, 2022. The change over prior year was primarily due to the $5,000 adjustment to increase the estimated TRA liability incurred during the prior year, partially offset by offering expenses of $640 in connection with the secondary offering during the first quarter of 2023.

Income Tax. The Company's effective tax rate for the nine months ended September 30, 2023 was 23.1% compared to 28.4% for the nine months ended September 30, 2022. The decrease in the effective tax rate was primarily due to the $5,000 non-deductible adjustment of the TRA liability in the prior period, partially offset by stock compensation benefits. For more information on the TRA liability, see Note 10 of the Condensed Consolidated Financial Statements included in Part I, Item I of this report.

Segments

For the Three Months Ended September 30, 2023 and 2022

			Three Months Ended September 30, 2023																		Three Months Ended September 30, 2022
			Passenger						Cargo						Total						Passenger						Cargo						Total
Operating Revenues			$	222,817					$	26,059					$	248,876					$	198,013					$	23,687					$	221,700
Operating Expenses:
Aircraft Fuel			61,157						22						61,179						64,763						80						64,843
Salaries, Wages, and Benefits			54,527						18,014						72,541						44,051						14,610						58,661
Aircraft Rent			22						—						22						1,949						—						1,949
Maintenance			11,679						3,651						15,330						7,290						3,728						11,018
Sales and Marketing			7,569						—						7,569						6,827						—						6,827
Depreciation and Amortization			22,756						6						22,762						17,152						29						17,181
Ground Handling			9,382						—						9,382						8,666						3						8,669
Landing Fees and Airport Rent			13,858						100						13,958						12,823						103						12,926
Other Operating, net			22,252						4,875						27,127						19,030						5,205						24,235
Total Operating Expenses			203,202						26,668						229,870						182,551						23,758						206,309
Operating Income (Loss)			$	19,615					$	(609)					$	19,006					$	15,462					$	(71)					$	15,391
Operating Margin %			8.8		%				(2.3)		%				7.6		%				7.8		%				(0.3)		%				6.9		%

Passenger. Passenger Operating Income increased $4,153 to $19,615 for the three months ended September 30, 2023, as compared to the three months ended September 30, 2022. The Operating Margin Percentage for the three months ended September 30, 2023 increased 1.0 percentage point, as compared to the three months ended September 30, 2022. The increases in Passenger Operating Income and Operating Margin were driven by an increase in the average passenger aircraft in the third quarter of 2023, as compared to the same period of 2022, which increased capacity and ASMs. This resulted in a significant increase in departures and passengers

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with relatively similar quarter-over-quarter per unit revenues for both Scheduled Service and Charter Service. Passenger Operating Income and Operating Margin for the three months ended September 30, 2023 also benefited from a 6% quarter-over-quarter decrease in Aircraft Fuel expense due to a 19% decrease in the average fuel cost per gallon, partially offset by a 17% increase in consumption. The price of fuel during the three months ended September 30, 2022 was significantly impacted by global geopolitical events. For more information on the changes in the components of Operating Income for the Passenger segment, refer to the Results of Operations discussion above.

Cargo. Cargo Operating Loss increased by $538, to $609 for the three months ended September 30, 2023, as compared to the three months ended September 30, 2022. Operating Margin Percentage for the three months ended September 30, 2023 decreased 2.0 percentage points, as compared to the three months ended September 30, 2022. The decrease was primarily driven by a quarter-over-quarter increase in Salaries, Wages, and Benefits due to an increase in employee head count, as well as per unit costs, to support operations. The changes in Operating Loss and Operating Margin Percentage were partially offset by the annual rate escalation included in the ATSA, which went into effect on December 13, 2022. For more information on the components of Operating Income for the Cargo segment, refer to the Results of Operations discussion above.

Segments

For the Nine Months Ended September 30, 2023 and 2022

			Nine Months Ended September 30, 2023																		Nine Months Ended September 30, 2022
			Passenger						Cargo						Total						Passenger						Cargo						Total
Operating Revenues			$	729,640					$	74,437					$	804,077					$	601,360					$	65,930					$	667,290
Operating Expenses:
Aircraft Fuel			185,770						59						185,829						206,254						80						206,334
Salaries, Wages, and Benefits			171,080						52,810						223,890						138,436						40,140						178,576
Aircraft Rent			2,281						—						2,281						7,347						—						7,347
Maintenance			33,339						10,972						44,311						25,665						10,129						35,794
Sales and Marketing			26,005						—						26,005						23,336						—						23,336
Depreciation and Amortization			64,527						50						64,577						49,282						82						49,364
Ground Handling			28,299						—						28,299						24,828						10						24,838
Landing Fees and Airport Rent			36,545						302						36,847						32,386						322						32,708
Other Operating, net			66,813						14,850						81,663						54,614						13,787						68,401
Total Operating Expenses			614,659						79,043						693,702						562,148						64,550						626,698
Operating Income (Loss)			$	114,981					$	(4,606)					$	110,375					$	39,212					$	1,380					$	40,592
Operating Margin %			15.8		%				(6.2)		%				13.7		%				6.5		%				2.1		%				6.1		%

Passenger. Passenger Operating Income increased $75,769 to $114,981 for the nine months ended September 30, 2023, as compared to the nine months ended September 30, 2022. Passenger Operating Margin Percentage for the nine months ended September 30, 2023 increased 9.3 percentage points, as compared to the nine months ended September 30, 2022. The increase in Passenger Operating Income and

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Operating Margin was driven by a year-over-year increase in demand for passenger service, as well as an increase in the average passenger aircraft which increased capacity and ASMs. Passenger Operating Income and Operating Margin for the nine months ended September 30, 2023 also benefited from a 10% year-over-year decrease in Aircraft Fuel expense due to an 18% decrease in the average fuel cost per gallon, slightly offset by a 10% increase in consumption. The price of fuel during the nine months ended September 30, 2022 was significantly impacted by global geopolitical events. For more information on the changes in the components of Operating Income for the Passenger segment, refer to the Results of Operations discussion above.

Cargo. Cargo had an Operating Loss of $4,606 for the nine months ended September 30, 2023, as compared to Operating Income of $1,380 for the nine months ended September 30, 2022, a decrease of $5,986. Operating Margin Percentage for the nine months ended September 30, 2023 decreased 8.3 percentage points, as compared to the nine months ended September 30, 2022. The decrease was primarily driven by a year-over-year increase in Salaries, Wages, and Benefits due to an increase in employee head count, an increase in per unit costs for pilots to support operations, and increased operating expenses as a result of an increase in departures. The decreases in Operating Loss and Operating Margin Percentage were partially offset by the annual rate escalation included in the ATSA, which went into effect on December 13, 2022. For more information on the components of Operating Income for the Cargo segment, refer to the Results of Operations discussion above.

Non-GAAP Financial Measures

We sometimes use information that is derived from the Condensed Consolidated Financial Statements, but that is not presented in accordance with GAAP. We believe these non-GAAP measures provide a meaningful comparison of our results to others in the airline industry and our prior year results. Investors should consider these non-GAAP financial measures in addition to, and not as a substitute for, our financial performance measures prepared in accordance with GAAP. Further, our non-GAAP information may be different from the non-GAAP information provided by other companies. We believe certain charges included in our operating expenses on a GAAP basis make it difficult to compare our current period results to prior periods as well as future periods and guidance. The tables below show a reconciliation of non-GAAP financial measures used in this Report to the most directly comparable GAAP financial measures.

Adjusted Operating Income, Adjusted Operating Income Margin, Adjusted Net Income and Adjusted EBITDA

Adjusted Operating Income, Adjusted Operating Income Margin, Adjusted Net Income, and Adjusted EBITDA are non-GAAP measures included as supplemental disclosure because we believe they are useful indicators of our operating performance. Derivations of Operating Income and Net Income are well recognized performance measurements in the airline industry that are frequently used by our management, as well as by investors, securities analysts and other interested parties in comparing the operating performance of companies in our industry.

The measures described above have limitations as analytical tools. Some of the limitations applicable to these measures include: they do not reflect the impact of certain cash and non-cash charges resulting from matters we consider not to be indicative of our ongoing operations; and other companies in our industry may calculate these non-GAAP measures differently than we do, limiting each measure’s usefulness as a comparative measure. Because of these limitations, the following non-GAAP measures should not be considered in isolation or as a substitute for performance measures calculated in accordance with GAAP and may not be the same as or comparable to similarly titled measures presented by other companies due to the possible differences in the method of calculation and in the items being adjusted.

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(Dollars in thousands, except per share amounts)

(Unaudited)

For the foregoing reasons, Adjusted Operating Income, Adjusted Operating Income Margin, Adjusted Net Income and Adjusted EBITDA have significant limitations which affect their use as indicators of our profitability. Accordingly, readers are cautioned not to place undue reliance on this information.

The following table presents the reconciliation of Operating Income to Adjusted Operating Income, and Adjusted Operating Income Margin for the periods presented below.

			Three Months Ended September 30,												Nine Months Ended September 30,
			2023						2022						2023						2022
Adjusted Operating Income Margin Reconciliation:
Operating Revenue			$	248,876					$	221,700					$	804,077					$	667,290
Operating Income			19,006						15,391						110,375						40,592
Stock Compensation Expense			1,039						487						8,132						1,981
Adjusted Operating Income			$	20,045					$	15,878					$	118,507					$	42,573
Operating Income Margin			7.6		%				6.9		%				13.7		%				6.1		%
Adjusted Operating Income Margin			8.1		%				7.2		%				14.7		%				6.4		%

The following table presents the reconciliation of Net Income to Adjusted Net Income for the periods presented below.

			Three Months Ended September 30,												Nine Months Ended September 30,
			2023						2022						2023						2022
Adjusted Net Income Reconciliation:
Net Income			$	7,591					$	10,677					$	66,536					$	10,392
Stock Compensation Expense			1,039						487						8,132						1,981
Gain on Asset Transactions, net (a)			—						(239)						—						(318)
Loss on refinancing credit facility			—						—						—						1,557
Secondary offering costs			—						—						640						—
TRA adjustment (b)			—						(3,500)						(357)						5,000
Income tax effect of adjusting items, net (c)			(239)						(57)						(2,018)						(741)
Adjusted Net Income			$	8,391					$	7,368					$	72,933					$	17,871

_________________________

(a)			Due to changes in the Company’s operations, management determined that, beginning in the fourth quarter of 2022, certain asset transactions will no longer be included as adjustments to Adjusted Net Income because these transactions are part of our recurring operations. This change was made prospectively beginning in the fourth quarter of 2022, and no prior period amounts have been adjusted.
(b)			This represents the adjustment to the TRA for the period, which is recorded in Non-Operating Income (Expense).
(c)			The tax effect of adjusting items, net is calculated at the Company's statutory rate for the applicable period. The TRA adjustment is not included within the income tax effect calculation.

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SUN COUNTRY AIRLINES HOLDINGS, INC

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

(Dollars in thousands, except per share amounts)

(Unaudited)

The following table presents the reconciliation of Net Income to Adjusted EBITDA for the periods presented below.

			Three Months Ended September 30,												Nine Months Ended September 30,
			2023						2022						2023						2022
Adjusted EBITDA Reconciliation:
Net Income			$	7,591					$	10,677					$	66,536					$	10,392
Stock Compensation Expense			1,039						487						8,132						1,981
Gain on Asset Transactions, net (a)			—						(239)						—						(318)
Secondary offering costs			—						—						640						—
TRA adjustment (b)			—						(3,500)						(357)						5,000
Interest Income			(2,480)						(1,610)						(7,766)						(2,166)
Interest Expense			11,403						7,493						31,272						23,097
Provision for Income Taxes			2,477						2,253						19,963						4,113
Depreciation and Amortization			22,762						17,181						64,577						49,364
Adjusted EBITDA			$	42,792					$	32,742					$	182,997					$	91,463

_________________________

(a)			Due to changes in the Company’s operations, management determined that, beginning in the fourth quarter of 2022, certain asset transactions will no longer be included as adjustments to Adjusted Net Income because these transactions are part of our recurring operations. This change was made prospectively beginning in the fourth quarter of 2022, and no prior period amounts have been adjusted.
(b)			This represents the adjustment to the TRA for the period, which is recorded in Non-Operating Income (Expense).

CASM and Adjusted CASM

CASM is a key airline cost metric defined as operating expenses divided by total available seat miles. Adjusted CASM is a non-GAAP measure derived from CASM by excluding fuel costs, costs related to our cargo operations, depreciation recognized on our aircraft and flight equipment held for operating lease, stock-based compensation, certain commissions and other costs of selling our vacation products from this measure as these costs are unrelated to our airline operations and improve comparability to our peers. Adjusted CASM is an important measure used by management and by our Board of Directors in assessing quarterly and annual cost performance. Adjusted CASM is commonly used by industry analysts and we believe it is an important metric by which they compare our airline to others in the industry, although other airlines may exclude certain other costs in their calculation of Adjusted CASM. The measure is also the subject of frequent questions from investors.

Adjusted CASM excludes fuel costs. By excluding volatile fuel expenses that are outside of our control from our unit metrics, we believe that we have better visibility into the results of operations and our non-fuel cost initiatives. Our industry is highly competitive and is characterized by high fixed costs, so even a small reduction in non-fuel operating costs can lead to a significant improvement in operating results. In addition, we believe that all domestic carriers are similarly impacted by changes in jet fuel costs over the long run, so it is important for management and investors to understand the impact and trends in company-specific cost drivers, such as labor rates, aircraft costs and maintenance costs, and productivity, which are more controllable by management.

We have excluded costs related to the cargo operations and depreciation recognized on our aircraft and flight equipment held for operating lease as these operations do not create ASMs. The cargo expenses in the reconciliation below are different from the total operating expenses for our Cargo segment in the “Segment Information” table presented above, due to several items that are included in the Cargo segment, but have been captured in other line items used in the Adjusted CASM calculation. The five Aircraft Held for Operating Lease

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SUN COUNTRY AIRLINES HOLDINGS, INC

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

(Dollars in thousands, except per share amounts)

(Unaudited)

were acquired during the nine months ended September 30, 2023. Depreciation expense on these aircraft materially began during the three months ended June 30, 2023. Adjusted CASM further excludes special items and other adjustments, as defined in the relevant reporting period, that are not representative of the ongoing costs necessary to our airline operations and may improve comparability between periods. We also exclude stock compensation expense when computing Adjusted CASM. The Company’s compensation strategy includes the use of stock-based compensation to attract and retain employees and executives and is principally aimed at aligning their interests with those of our stockholders and long-term employee retention, rather than to motivate or reward operational performance for any period. Thus, stock-based compensation expense varies for reasons that are generally unrelated to operational decisions and performance in any period.

As derivations of Adjusted CASM are not determined in accordance with GAAP, such measures are susceptible to varying calculations and not all companies calculate the measures in the same manner. As a result, derivations of Adjusted CASM as presented may not be directly comparable to similarly titled measures presented by other companies. Adjusted CASM should not be considered in isolation or as a replacement for CASM. For the aforementioned reasons, Adjusted CASM has significant limitations which affect its use as an indicator of our profitability. Accordingly, readers are cautioned not to place undue reliance on this information.

The following tables present the reconciliation of CASM to Adjusted CASM.

			Three Months Ended September 30,
			2023												2022
			Operating Expenses						Per ASM (in cents)						Operating Expenses						Per ASM (in cents)
CASM			$	229,870					12.83						$	206,309					13.28
Less:
Aircraft Fuel			61,179						3.41						64,843						4.17
Stock Compensation Expense			1,039						0.06						487						0.03
Cargo expenses, not already adjusted above			26,417						1.48						23,569						1.52
Sun Country Vacations			200						0.01						193						0.01
Aircraft and Flight Equipment Held for Operating Lease, Depreciation Expense			2,192						0.12						—						—
Adjusted CASM			$	138,843					7.75						$	117,217					7.55
ASM (thousands)			1,791,485												1,553,483

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SUN COUNTRY AIRLINES HOLDINGS, INC

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

(Dollars in thousands, except per share amounts)

(Unaudited)

			Nine Months Ended September 30,
			2023												2022
			Operating Expenses						Per ASM (in cents)						Operating Expenses						Per ASM (in cents)
CASM			$	693,702					12.57						$	626,698					12.25
Less:
Aircraft Fuel			185,829						3.37						206,334						4.03
Stock Compensation Expense			8,132						0.14						1,981						0.04
Cargo expenses, not already adjusted above			77,195						1.40						64,007						1.25
Sun Country Vacations			902						0.02						810						0.02
Aircraft and Flight Equipment Held for Operating Lease, Depreciation Expense			4,466						0.08						—						—
Adjusted CASM			$	417,178					7.56						$	353,566					6.91
ASM (thousands)			5,516,826												5,114,134

Liquidity and Capital Resources

The airline business is capital intensive. Our ability to successfully execute our business strategy is largely dependent on the continued availability of capital with attractive terms and maintaining sufficient liquidity. We have historically funded our operations and capital expenditures primarily through cash from operations, proceeds from stockholders’ capital contributions, the issuance of promissory notes, and debt financing.

Our primary sources of liquidity as of September 30, 2023 included our existing cash and cash equivalents of $26,967 and short-term investments of $153,290, our expected cash generated from operations, and the $24,650 of available funds from the Revolving Credit Facility. In addition, we had restricted cash of $10,953 as of September 30, 2023, which generally consists of cash received as prepayment for chartered flights that is maintained in separate escrow accounts in accordance with DOT regulations requiring that charter revenue receipts received prior to the date of transportation are maintained in a separate third-party escrow account. The restrictions are released once the charter transportation is provided.

Our primary uses of liquidity are for operating expenses, capital expenditures, lease rentals and maintenance reserve deposits, debt repayments, working capital requirements, and other general corporate purposes. Our single largest capital expenditure requirement relates to the acquisition of aircraft. We do not maintain an aircraft order book; instead, we enter into aircraft transactions on an opportunistic basis based on market conditions, our prevailing level of liquidity and capital market availability. As a result, we are not locked into large future capital expenditures. We have historically acquired aircraft through operating leases, finance leases, and debt. Our management team retains broad discretion to allocate liquidity.

We believe that our unrestricted cash and cash equivalents, short-term investments, and availability under our Revolving Credit Facility, combined with expected future cash flows from operations, will be sufficient to fund our operations and meet our debt payment obligations for at least the next twelve months. However, we cannot predict what the effect on our business and financial position might be from a change in the competitive environment in which we operate or from events beyond our control, such as volatile fuel prices, economic conditions, pandemics, weather-related disruptions, the impact of airline bankruptcies, restructurings or consolidations, U.S. military actions, regulations, or acts of terrorism.

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SUN COUNTRY AIRLINES HOLDINGS, INC

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

(Dollars in thousands, except per share amounts)

(Unaudited)

Aircraft – As of September 30, 2023, our fleet consisted of 59 Boeing 737-NG aircraft. This includes 42 aircraft in the passenger fleet, 12 cargo operated aircraft through the ATSA, and five Aircraft Held for Operating Lease. During the nine months ended September 30, 2023, the Company acquired five Aircraft Held for Operating Lease for total consideration of approximately $158,000.

For more information on our fleet and probable future aircraft acquisitions, see Note 4 and Note 12 of the Condensed Consolidated Financial Statements included in Part I, Item I of this report. For more information on the purchase of five Aircraft Held for Operating Lease, see Note 5 of the Condensed Consolidated Financial Statements included in Part I, Item I of this report.

Maintenance Deposits - In addition to funding the acquisition of aircraft, we are required by certain of our aircraft lessors to fund reserves in cash in advance for scheduled maintenance to act as collateral for the benefit of lessors. Qualifying payments that are expected to be recovered from lessors are recorded as Lessor Maintenance Deposits on our Condensed Consolidated Balance Sheets. As of September 30, 2023, we had $42,363 of total Lessor Maintenance Deposits.

Investments - We invest our cash and cash equivalents in highly liquid securities with strong credit ratings. As of September 30, 2023, the Company held $146,519 of debt securities, all of which are classified as current assets because of their highly liquid nature and availability to be converted into cash to fund current operations. Given the significant portion of our portfolio held in cash and cash equivalents and the high credit quality of our debt security investments, we do not anticipate fluctuations in the aggregate fair value of our investments to have a material impact on our liquidity or capital position.

We also hold $6,771 of Certificates of Deposit that are included in Investments on the Condensed Consolidated Balance Sheets as of September 30, 2023.

Credit Facilities - We use our Credit Facilities to provide liquidity support for general corporate purposes and to finance the acquisition of aircraft.

As of September 30, 2023, the Company had $24,650 of the $25,000 Revolving Credit Facility available due to $350 being pledged to support a letter of credit, and no balance drawn. The Credit Agreement includes financial covenants that require a minimum trailing 12-month EBITDAR ($87,700 as of March 31, 2022 and beyond) and a minimum liquidity, as defined within the Credit Agreement, of $30,000 at the close of any business day. The Company was in compliance with these covenants as of September 30, 2023.

Debt - At our discretion, we obtain debt financing through the issuance of pass-through trust certificates to purchase, or refinance aircraft. For more information on our credit facilities or debt, see Note 6 of the Condensed Consolidated Financial Statements included in Part I, Item I of this report. In December 2019, we issued the 2019-1 EETC, for the purpose of financing or refinancing 13 used aircraft. In March 2022, the Company issued the 2022-1 EETC for the purpose of financing or refinancing 13 aircraft.

During the nine months ended September 30, 2023, we executed a term loan credit facility with a face amount of $119,200 for the purpose of financing the five Aircraft Held for Operating Lease. The loan is to be repaid monthly over 7 years. During the lease term, payments collected from the lessee will be applied directly to the repayment of principal and interest on the term loan credit facility. The Aircraft Held for Operating Lease, as well as the related lease payments received from the lessee, are pledged as collateral.

The interest rate on the term loan credit facility is determined by using a base rate, which resets monthly, plus an applicable margin, and a fixed credit spread adjustment of 0.1%. The applicable margin during the lease term is fixed at 3.75%, and is subsequently reduced to 3.25% once the aircraft have been redelivered to the Company and a LTV ratio calculation is completed at the end of the lease term. The interest rate in effect as of

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SUN COUNTRY AIRLINES HOLDINGS, INC

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

(Dollars in thousands, except per share amounts)

(Unaudited)

September 30, 2023 was 9.2%. To the extent that the LTV exceeds 75% at the end of the lease term, a principal prepayment will be required in order to reduce the ratio to 75%. If at any point within 12 months of the end of the lease term for each respective aircraft the Company deems it probable that a principal prepayment will be required in order to reduce the LTV ratio to 75%, and such amount can be reasonably estimated, the estimated principal prepayment amount will be reclassified from Long-term Debt, net to Current Maturities of Long-Term Debt, net on the Company's Condensed Consolidated Balance Sheets. In the event a principal prepayment is required, amounts received under the end of lease maintenance compensation clause may be applied towards the prepayment.

TRA Liability - During the nine months ended September 30, 2023, we made a payment of $2,425 to the TRA holders. Payments will be made in future periods as Pre-IPO Tax Attributes are utilized. For more information on the TRA liability, see Note 10 of the Condensed Consolidated Financial Statements included in Part I, Item I of this report.

Liquidity and Financial Condition Indicators

The table below presents the major indicators of financial condition and liquidity:

			September 30, 2023						December 31, 2022
Cash and Cash Equivalents			$	26,967					$	92,086
Available-for-Sale Securities			146,519						172,635
Amount Available Under Revolving Credit Facility			24,650						24,650
Total Liquidity			$	198,136					$	289,371
			September 30, 2023						December 31, 2022
Total Debt, net			$	435,105					$	352,235
Finance Lease Obligations			263,281						251,296
Operating Lease Obligations			19,394						26,132
Total Debt, net, and Lease Obligations			717,780						629,663
Stockholders' Equity			519,361						492,712
Total Invested Capital			$	1,237,141					$	1,122,375
Debt-to-Capital Ratio			0.58						0.56

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SUN COUNTRY AIRLINES HOLDINGS, INC

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

(Dollars in thousands, except per share amounts)

(Unaudited)

Sources and Uses of Liquidity

			Nine Months Ended September 30,												$						%
			2023						2022						Change						Change
Total Operating Activities			$	102,651					$	71,671					$	30,980					43		%
Investing Activities:
Purchases of Property & Equipment			(210,641)						(177,658)						(32,983)						19		%
Purchases of Investments			(82,574)						(130,529)						47,955						(37)		%
Proceeds from the Maturities of Investments			110,850						—						110,850						NM
Other, net			4,087						10,577						(6,490)						(61)		%
Total Investing Activities			(178,278)						(297,610)						119,332						(40)		%
Financing Activities:
Common Stock Repurchases			(55,051)						—						(55,051)						NM
Proceeds from Borrowings			119,200						188,277						(69,077)						(37)		%
Repayment of Finance Lease Obligations			(16,390)						(37,842)						21,452						(57)		%
Repayment of Borrowings			(35,475)						(95,305)						59,830						(63)		%
Other, net			(1,665)						(901)						(764)						85		%
Total Financing Activities			10,619						54,229						(43,610)						(80)		%
Net Decrease in Cash			$	(65,008)					$	(171,710)					$	106,702					(62)		%

"Cash" consists of Cash, Cash Equivalents and Restricted Cash

"NM" stands for not meaningful

Operating Cash Flow Activities

Operating activities in the nine months ended September 30, 2023 provided $102,651, as compared to $71,671 during the nine months ended September 30, 2022. During the nine months ended September 30, 2023, our Net Income was $66,536, as compared to a Net Income of $10,392 during the nine months ended September 30, 2022.

Our operating cash flow is primarily impacted by the following factors:

Seasonality of Advance Ticket Sales. We sell tickets for air travel in advance of the customer's travel date. When we receive a cash payment at the time of sale, we record the cash received on advance sales as deferred revenue in Air Traffic Liabilities. Air Traffic Liabilities typically increase during the fall and early winter months as advanced ticket sales grow prior to the late winter and spring peak travel season and decrease during the summer months. Most tickets can be purchased no more than twelve months in advance, therefore any revenue associated with tickets sold for future travel will be recognized within that timeframe. For the nine months ended September 30, 2023, $152,292 of revenue recognized in Passenger revenue was included in the $157,995 of Air Traffic Liabilities as of December 31, 2022. The balance of Air Traffic Liabilities as of September 30, 2023 was materially unchanged year-over-year.

Aircraft Fuel. Aircraft Fuel expense represented approximately 27% and 33% of our total operating expense for the nine months ended September 30, 2023 and 2022, respectively. The market price for jet fuel is volatile, which can impact the comparability of our periodic cash flows from operations. Fuel cost per gallon decreased by 18% year-over-year due to the impact of global geopolitical events on the price of fuel during the nine months ended September 30, 2022. Fuel consumption increased by 10% during the nine months ended

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SUN COUNTRY AIRLINES HOLDINGS, INC

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

(Dollars in thousands, except per share amounts)

(Unaudited)

September 30, 2023, compared to the prior year as a result of the increase in fleet size and total operations. We expect volatility in Aircraft Fuel prices per gallon throughout the remainder of 2023 due to market conditions and global geopolitical events. As capacity has grown due to the increase in the year-over-year average passenger aircraft during the period, we expect that fuel consumption will remain higher for full year 2023 as compared to 2022.

Investing Cash Flow Activities

Capital Expenditures. Our capital expenditures were $210,641 and $177,658 for the nine months ended September 30, 2023 and 2022, respectively. Our capital expenditures during the nine months ended September 30, 2023 primarily included the purchase of five Aircraft Held for Operating Lease and one incremental aircraft for our passenger fleet. Our capital expenditures during the nine months ended September 30, 2022 primarily included the purchase of five incremental aircraft, two aircraft off operating leases, five spare engines, prepayment of a flight simulator, and other miscellaneous projects.

Investments. During the nine months ended September 30, 2023, the Company's net investment activity resulted in cash inflows of $28,276 due to maturing debt securities exceeding purchases of investments. These maturing cash inflows were used to fund the purchase of aircraft during the nine months ended September 30, 2023. During the second quarter of 2022 we changed our investment strategy which led to the purchase of $130,529 of investments during the nine months ended September 30, 2022.

Financing Cash Flow Activities

Debt. During the nine months ended September 30, 2023, the Company executed a term loan credit facility with a face amount of $119,200 for the purpose of financing the five Aircraft Held for Operating Lease. The loan is to be repaid monthly over 7 years. In March 2022, the Company arranged for the issuance of the 2022-1 EETC in an aggregate face amount of $188,277 for the purpose of financing or refinancing 13 aircraft. Five of these aircraft were owned fleet assets previously financed by the DDTL, which was repaid with the proceeds from the 2022-1 EETC.

The Company is required to make bi-annual principal and interest payments on the 2022-1 EETC each March and September, through March 2031. The Company is required to make bi-annual principal and interest payments on the 2019-1 EETC each June and December, through December 2027.

Finance Leases. Our repayments of finance lease obligations were $16,390 and $37,842 for the nine months ended September 30, 2023 and 2022, respectively. During the nine months ended September 30, 2022, the Company purchased two aircraft previously classified as a finance lease using proceeds from the 2022-1 EETC. The resulting cash outflows are recorded as payments for finance lease obligations. There were no similar aircraft transactions during the nine months ended September 30, 2023. As of September 30, 2023 and 2022, the Company had 13 and 11 aircraft finance leases, respectively.

Common Stock Repurchases. During the nine months ended September 30, 2023, the Company repurchased 3,307,541 shares of its Common Stock at an average price of $16.64 per share. The repurchases were part of a secondary public offering of the Company's shares by the Apollo Stockholder, as well as open market purchases completed in the second and third quarters. For more information on the stock repurchase program and this purchase, see Note 11 of the Condensed Consolidated Financial Statements included in Part I, Item I of this report.

Other. During the nine months ended September 30, 2023, the Company made a payment of $2,425 to the TRA holders. For more information on the payment of the TRA, see Note 10 of the Condensed Consolidated Financial Statements included in Part I, Item I of this report.

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SUN COUNTRY AIRLINES HOLDINGS, INC

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

(Dollars in thousands, except per share amounts)

(Unaudited)

Off Balance Sheet Arrangements

For a detailed discussion on the nature of the Company's Off Balance Sheet Arrangements, see “Management’s Discussion and Analysis of Operations” in Part II, Item 7 in our 2022 10-K. There have been no material changes to the Company's Off Balance Sheet Arrangements as compared to the 2022 10-K.

Commitments and Contractual Obligations

See Note 12 to our Condensed Consolidated Financial Statements included elsewhere in this Quarterly Report on Form 10-Q for more information regarding commitments and contractual obligations.

Recently Adopted Accounting Pronouncements

During the nine months ended September 30, 2023, there were no recently adopted accounting standards that had a material impact to the Company.

Critical Accounting Policies and Estimates

Our unaudited Condensed Consolidated Financial Statements and the accompanying notes thereto included elsewhere in this Quarterly Report on Form 10-Q are prepared in accordance with GAAP. The preparation of the Condensed Consolidated Financial Statements requires us to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenue, expenses, and various other assumptions that we believe to be reasonable under the circumstances. Actual results could differ significantly from our estimates. To the extent that there are differences between our estimates and actual results, our future financial statement presentation, financial condition, results of operations, and cash flows will be affected. For more information on our critical accounting policies, see “Management’s Discussion and Analysis of Operations” sections within Part II, Item 7, respectively, in our 2022 10-K.

There have been no material changes to our critical accounting policies and estimates as compared to the 2022 10-K.

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ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

We are subject to market risks in the ordinary course of our business. These risks include commodity price risk, specifically with respect to aircraft fuel, as well as interest rate risk. The adverse effects of changes in these markets could pose a potential loss as discussed below. The sensitivity analysis provided does not consider the effects that such adverse changes may have on overall economic activity, nor does it consider additional actions we may take to mitigate our exposure to such changes. Accordingly, actual results may differ from the information provided below.

Aircraft Fuel. Unexpected pricing changes of aircraft fuel could have a material adverse effect on our business, results of operations and financial condition. To hedge the economic risk associated with volatile aircraft fuel prices, we periodically enter into fuel collars, which allows us to reduce the overall cost of hedging, but may prevent us from participating in the benefit of downward price movements. In the past, we have also entered into fuel option and swap contracts. We had no hedges in place at September 30, 2023. We do not hold or issue option or swap contracts for trading purposes. We currently do not expect to enter into these types of contracts prospectively, although significant changes in market conditions could affect our decisions. Based on our forecasted scheduled service and charter fuel consumption for the fourth quarter of 2023, we estimate that a one cent per gallon increase in the average aircraft fuel price would increase aircraft fuel expense by approximately $200 excluding reimbursed fuel from cargo and certain charter customers.

Interest Rates. We have exposure to market risk associated with changes in interest rates related to the interest expense from our variable-rate debt and our short-term investment securities. A change in market interest rates would impact interest expense under the $119,200 term loan credit facility used to finance the Aircraft Held for Operating Lease. A 100 basis point increase in interest rates on the September 30, 2023 balance of the term loan would result in a corresponding increase in interest expense of approximately $1,121 annually. As of the date of this filing, the entire term loan credit facility had been drawn. The Company also maintains a $25,000 Revolving Credit Facility with a variable interest rate that is impacted by market conditions. As of September 30, 2023, the Company had $24,650 of financing available through the Revolving Credit Facility, as $350 had been pledged to support a letter of credit. As of September 30, 2023, no amounts on the Revolving Credit Facility had been drawn.

Our short-term investment securities are primarily comprised of fixed-rate debt investments. An increase in market interest rates decreases the market value of fixed-rate investments. Conversely, a decrease in market interest rates increases the market value. The fair market value of our short-term investments with exposure to interest rate risk was $146,519 as of September 30, 2023. The Company limits its investments to investment grade quality securities. Given these factors and that a significant portion of our portfolio is held in cash and cash equivalents, we do not anticipate fluctuations in the aggregate fair value of our financial assets to have a material impact on our liquidity or capital position.

ITEM 4. CONTROLS AND PROCEDURES

Evaluation of Disclosure Controls and Procedures

Disclosure controls and procedures represent controls and procedures that are designed to ensure that information required to be disclosed in our reports filed or submitted under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), is recorded, processed, summarized, and reported within the time periods specified in the SEC’s rules and forms. Disclosure controls and procedures include, without limitation, controls and procedures designed to ensure that information required to be disclosed in our reports filed or submitted under the Exchange Act is accumulated and communicated to our management, including our Chief Executive Officer and Chief Financial Officer, to allow timely decisions regarding required disclosure.

In connection with the preparation of this Form 10-Q, pursuant to Rule 13a-15(b) of the Exchange Act, our management, with the participation of our Chief Executive Officer and Chief Financial Officer, has evaluated the effectiveness of the design and operation of our disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act) as of September 30, 2023.

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Based on the evaluation of our disclosure controls and procedures as of September 30, 2023, our Chief Executive Officer and Chief Financial Officer have concluded that our disclosure controls and procedures were not effective as of September 30, 2023, due to the material weaknesses in internal control over financial reporting described below.

Material Weaknesses in Internal Control over Financial Reporting

A material weakness is a deficiency, or a combination of deficiencies, in internal control over financial reporting, such that there is a reasonable possibility that a material misstatement of the Company’s annual or interim financial statements will not be prevented or detected on a timely basis.

We previously disclosed in our Annual Report on Form 10-K as of December 31, 2022 that management identified a material weakness in the Company's internal control over financial reporting. Specifically, controls over the accounting for complex, non-routine transactions were not designed or implemented to operate with a sufficient level of precision. This included controls addressing the application of ASC Topic 842, Leases, to the purchase of aircraft subject to an existing operating lease.

During the quarter ended June 30, 2023, management identified an additional material weakness in the Company’s internal control over financial reporting. Specifically, the Company did not have an effective risk assessment process to identify and assess the risks of misstatement associated with the utilization of a third-party service organization's hosted IT solution for automating the processing of vendor invoices (i.e., scanning, routing, approving, and preparing the recording of invoices) and hosting of related information. As a result, management’s information technology general controls (“ITGCs”) over the IT application used by the service organization and process-level controls over the procurement activities carried out by the third-party service organization were not designed or implemented to operate at a sufficient level of precision. The Company also did not obtain a System and Organization Controls ("SOC") Report from the third-party that would provide evidence of design, implementation, and operating effectiveness of such controls within the service organization’s framework of internal controls.

These control deficiencies did not result in a material misstatement of the Condensed Consolidated Financial Statements included in this Quarterly Report on Form 10-Q or our prior period consolidated annual or interim financial statements. However, each of these control deficiencies create a reasonable possibility that a material misstatement to the annual or interim consolidated financial statements will not be prevented or detected on a timely basis. Accordingly, management has concluded that each control deficiency constituted a material weakness in the Company's internal control over financial reporting and our internal control over financial reporting was not effective as of September 30, 2023.

Remediation Plan

Management is continuing to supplement and enhance the Company's system of internal control over financial reporting through actions responsive to each identified material weakness. The remediation plan for the material weakness associated with accounting for complex, non-routine transactions, includes the following:

•Hired a technical accounting specialist and manager after the material weakness occurred;

•Provided additional training on how to utilize external technical accounting research resources;

•Reviewed all existing internal accounting policies and accounting guidance memos for completeness and the appropriate accounting guidance, including those surrounding leases;

•Established a policy to provide additional guidance surrounding the use of third-party specialists;

•Enhanced the design of financial reporting controls, specifically sub-certifications and review of non-routine transactions including updating the lease accounting checklist;

•Engaged third-party specialists, as necessary, to review management’s analysis and conclusions on the accounting for non-routine transactions involving the application of complex accounting standards;

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•Continued to review and make necessary changes to the design of our risk assessment and review controls over accounting for complex, non-routine transactions, including lease-related transactions;

•Re-designed the overall design of our risk assessment process with utilization of a new third-party tool; and

•Established a policy and internal controls surrounding transactions related to a new lessor relationship.

We have made significant progress in accordance with our remediation plan related to the material weakness in controls over the accounting for complex, non-routine transactions since the filing of our June 30, 2023 10-Q as follows:

•Continued to engage third-party technical accounting specialists to review management's conclusions on the accounting for non-routine transactions occurring in the third quarter of 2023;

•Continued to perform management's controls surrounding the accounting for complex, non-routine transactions, including those associated with the acquisition and related financing of additional aircraft, and those involved with becoming a first-time aircraft lessor; and

•Provided "refresher" training on how to utilize external technical accounting research resources.

The remediation plan for the material weakness associated with the controls over the utilization of a third-party service organization's hosted IT solution for automating the processing of vendor invoices and hosting of related information, includes the following:

•Understand the timing and scope of the third-party service organization's attestation report to determine whether the attestation will be adequate and performed in a timely manner to cover our fiscal year;

•Where a SOC attestation is not completed, explore alternative solutions including, but not limited to, a) bringing the application on premise so the necessary IT infrastructure and related processes and controls surrounding the IT application can be entirely within the Company’s control, and b) evaluating other service providers that are able to provide a SOC attestation report; and

•Enhance the design and operation of manual internal controls within the Company, including tracking and reviewing of vendor invoices outside of the third-party service organization’s application and processes, in the event an adequate and timely SOC attestation report is not available from the third-party service organization and other viable solutions are not pursued.

We have made significant progress in accordance with our remediation plan related to the material weakness in controls over the utilization of a third-party service organization’s hosted IT solution for automating the processing of vendor invoices and hosting of related information since the filing of our June 30, 2023 10-Q as follows:

•Established and tested the IT infrastructure necessary to operate the vendor’s application on premise;

•Completed the move of the historical data and implemented internal processes and controls surrounding the IT application in order to operate it entirely within the Company’s control; and

•Continuing to enhance the risk assessment process and design of our process-level controls over procurement activities so they operate at a sufficient level of precision.

Each material weakness will not be considered remediated until a sustained period of time has passed to allow management to test the design and operating effectiveness of the new or enhanced controls implemented as a result of the corrective actions. We believe that our remediation plans will be sufficient to remediate the identified material weaknesses and strengthen our internal control over financial reporting. However, as we continue to evaluate and improve our internal control over financial reporting, management may determine that additional measures to address the identified control deficiencies or modifications to the remediation plans are necessary. Therefore, we cannot assure you when the Company will remediate the material weaknesses identified above, nor can we be certain that additional actions will not be required and what the costs of any such additional actions may be. Moreover, we cannot assure you that additional material weaknesses will not arise in the future.

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Despite the existence of these material weaknesses, our management believes that the Condensed Consolidated Financial Statements included in this Quarterly Report present fairly, in all material respects, the Company's financial position, results of operations and cash flows for the periods presented in conformity with GAAP.

Changes in Internal Control Over Financial Reporting

Other than the changes made as part of the remediation plans described above, there has been no change in the Company’s internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act) that occurred during the quarter ended September 30, 2023 that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

PART II. OTHER INFORMATION

ITEM 1. LEGAL PROCEEDINGS

We are subject to commercial litigation claims and to administrative and regulatory proceedings and reviews that may be asserted or maintained from time to time. We currently believe that the ultimate outcome of such lawsuits, proceedings and reviews will not, individually or in the aggregate, have a material adverse effect on our financial position, liquidity or results of operations.

ITEM 1A. RISK FACTORS

We have disclosed under the heading “Risk Factors” in our 2022 10-K, March 31, 2023 10-Q, and June 30, 2023 10-Q, the risk factors which materially affect our business, financial condition or results of operations. Except for the updated risk factors set forth below, there have been no material changes from the risk factors previously disclosed. You should carefully consider the risk factors set forth in our 2022 10-K, March 31, 2023 10-Q, June 30, 2023 10-Q and the risk factors presented in this Quarterly Report on Form 10-Q. You should be aware that these risk factors and other information may not describe every risk facing our Company. Additional risks and uncertainties not currently known to us or that we currently deem to be immaterial also may materially adversely affect our business, financial condition and/or operating results.

Risks Related to Our Industry

Terrorism, war, and other events may harm our business, results of operations and financial condition.

The continued threat of terrorism and heightened security and military action in response thereto, or any other current or future acts of terrorism, war (such as the Hamas-Israel and the Russia-Ukraine military conflicts), and other events (such as economic sanctions and trade restrictions, including those related to the foregoing) may cause further disruptions to the economies of the United States and other countries and create further uncertainties or could otherwise negatively impact our business, financial condition and/or operating results.

ITEM 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS

The following table summarizes the Company's repurchases of Common Stock for the quarter ended September 30, 2023. All stock repurchases during the quarter reflect shares repurchased pursuant to the Company's stock repurchase program and shares withheld from employees to satisfy the taxes due in connection with grants of stock under the Company's equity incentive plans. The shares of Common Stock withheld to satisfy tax withholding obligations are considered to be "issuer purchases" of shares that are required to be disclosed pursuant to this Item, but are not considered to be part of the Company's stock

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repurchase program. For more information on the Company's stock repurchase program, see Note 11 to the Condensed Consolidated Financial Statements included in Part I, Item 1 of this report.

						Total Number of Shares Purchased						Average Price Paid per Share						Total Number of Shares Purchased as Part of Publicly Announced Plans						Approximate Dollar Value ($ in thousands) of Shares that May Yet be Purchased Under Plan (2)
July 1-31, 2023						—						$	—					—						$	2,759
August 1-31, 2023 (1)						1,236,023						15.45						1,236,023						13,667
September 1-30, 2023						904,767						15.11						904,767						—
Total						2,140,790						$	15.30					2,140,790						$	—

__________________________

(1)On August 1, 2023, the Company's Board of Directors authorized the addition of $30,000 to the Company's existing stock repurchase program, which increased the total amount of authorization remaining to repurchase shares of the Company's Common Stock as of that date to $32,759.

(2)Subsequent to September 30, 2023, the Company's Board of Directors authorized the addition of $25,000 to the Company's existing stock repurchase program.

ITEM 3. DEFAULTS UPON SENIOR SECURITIES

None.

ITEM 4. MINE SAFETY DISCLOSURES

Not Applicable.

ITEM 5. OTHER INFORMATION

Our directors and executive officers may purchase or sell shares of our common stock in the market from time to time, including pursuant to equity trading plans adopted in accordance with Rule 10b5-1 under the Exchange Act ("Rule 10b5-1") and in compliance with guidelines specified by the Company. In accordance with Rule 10b5-1 and the Company’s insider trading policy, directors, officers and certain employees who, at such time, are not in possession of material non-public information about the Company are permitted to enter into written plans that pre-establish amounts, prices and dates (or formula for determining the amounts, prices and dates) of future purchases or sales of the Company’s stock, including shares acquired pursuant to the Company’s equity plans ("Rule 10b5-1 Trading Plans"). Under a Rule 10b5-1 Trading Plan, a broker executes trades pursuant to parameters established by the director or executive officer when entering into the plan, without further direction from them. The following table describes contracts, instructions or written plans for the sale or purchase of our securities adopted, terminated or modified by our directors and executive officers during the three months ended September 30, 2023, each of which is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c).

Name and Title

Adoption, Termination or Modification

Date of Adoption, Termination or Modification

Duration of Plan (Scheduled Expiration Date of Plan)

Number of Securities to be Purchased (Sold) under the Plan

Dave Davis, President and Chief Financial Officer

Termination

August 21, 2023

December 29, 2023

(162,422)

Dave Davis, President and Chief Financial Officer

Adoption

August 21, 2023

May 3, 2024

(350,720)

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ITEM 6. EXHIBITS

(a)Exhibits

10.1*#			Amendment 19 to the Inventory Support Services Agreement, dated as July 20, 2023, by and between Sun Country, Inc., dba Sun Country Airlines and Delta Air Lines, Inc.
31.1*			Certification by Sun Country's Chief Executive Officer with respect to Sun Country's Quarterly Report on Form 10-Q for the quarterly period ended September 30, 2023
31.2*			Certification by Sun Country’s President and Chief Financial Officer with respect to Sun Country's Quarterly Report on Form 10-Q for the quarterly period ended September 30, 2023
32*			Certification pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code by Sun Country Airlines Holdings, Inc.’s Chief Executive Officer and President and Chief Financial Officer with respect to Sun Country's Quarterly Report on Form 10-Q for the quarterly period ended September 30, 2023
101.INS*			Inline XBRL Instance Document - The instance document does not appear in the interactive data file because its XBRL tags are embedded within the Inline XBRL document
101.SCH*			Inline XBRL Taxonomy Extension Schema Document
101.CAL*			Inline XBRL Taxonomy Extension Calculation Linkbase Document
101.DEF*			Inline XBRL Taxonomy Extension Definition Linkbase Document
101.LAB*			Inline XBRL Taxonomy Extension Labels Linkbase Document
101.PRE*			Inline XBRL Taxonomy Extension Presentation Linkbase Document
104*			Cover Page Interactive Data Files (formatted as inline XBRL and contained in Exhibit 101)

*			Filed herewith
#			Certain portions of this exhibit have been redacted pursuant to Item 601(b)(10)(iv) of Regulation S-K. The Company agrees to furnish supplementally an unredacted copy of the exhibit to the Securities and Exchange Commission upon its request.

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SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

			Sun Country Airlines Holdings, Inc. (Registrant)
			/s/ Dave Davis
			Dave Davis
			President and Chief Financial Officer (Principal Financial and Accounting Officer)
November 7, 2023

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