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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 March 31, 2024

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

Commission File Number 001-5424

deltacra01a01a01a02a58.jpg

DELTA AIR LINES, INC.

(Exact name of registrant as specified in its charter)

Delaware58-0218548
(State or other jurisdiction of incorporation or organization)(I.R.S. Employer Identification No.)
Post Office Box 20706
Atlanta, Georgia30320-6001
(Address of principal executive offices)(Zip Code)

Registrant's telephone number, including area code: (404) 715-2600

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

Title of each classTrading SymbolName of each exchange on which registered
Common Stock, par value $0.0001 per shareDALNew York Stock Exchange

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 March 31, 2024

Common Stock, $0.0001 par value - 645,312,283 shares outstanding

This document is also available through our website at http://ir.delta.com/.

Table of Contents
Page
Forward Looking Statements1
Report of Independent Registered Public Accounting Firm2
Part I. Financial Information
Item 1. Financial Statements3
Consolidated Balance Sheets3
Condensed Consolidated Statements of Operations and Comprehensive Income/(Loss)4
Condensed Consolidated Statements of Cash Flows5
Consolidated Statements of Stockholders' Equity6
Notes to the Condensed Consolidated Financial Statements7
Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations16
Item 3. Quantitative and Qualitative Disclosures About Market Risk28
Item 4. Controls and Procedures28
Part II. Other Information
Item 1. Legal Proceedings28
Item 1A. Risk Factors28
Item 2. Unregistered Sales of Equity Securities and Use of Proceeds28
Item 6. Exhibits29
Signature30

Forward Looking Statements

Unless otherwise indicated or the context otherwise requires, the terms "Delta," "we," "us" and "our" refer to Delta Air Lines, Inc. and its subsidiaries.

FORWARD-LOOKING STATEMENTS

Statements in this Form 10-Q (or otherwise made by us or on our behalf) that are not historical facts, including statements about our estimates, expectations, beliefs, intentions, projections, goals, aspirations, commitments or strategies for the future, may be "forward-looking statements" as defined in the Private Securities Litigation Reform Act of 1995. Forward-looking statements involve risks and uncertainties that could cause actual results to differ materially from historical experience or our present expectations. Known material risk factors applicable to Delta are described in "Item 1A. Risk Factors" of our Annual Report on Form 10-K for the fiscal year ended December 31, 2023 ("Form 10-K"), other than risks that could apply to any issuer or offering. All forward-looking statements speak only as of the date made, and we undertake no obligation to publicly update or revise any forward-looking statements to reflect events or circumstances that may arise after the date of this report except as required by law.

Delta Air Lines, Inc. | March 2024 Form 10-Q 1

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Board of Directors and Stockholders of

Delta Air Lines, Inc.

Results of Review of Interim Financial Statements

We have reviewed the accompanying consolidated balance sheet of Delta Air Lines, Inc. (the Company) as of March 31, 2024, the related condensed consolidated statements of operations and comprehensive income/(loss), condensed consolidated statements of cash flows, and consolidated statements of stockholders' equity for the three-month periods ended March 31, 2024 and 2023, and the related notes (collectively referred to as the "condensed consolidated interim financial statements"). Based on our reviews, we are not aware of any material modifications that should be made to the condensed consolidated interim financial statements for them to be in conformity with U.S. generally accepted accounting principles.

We have previously audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the consolidated balance sheet of the Company as of December 31, 2023, the related consolidated statements of operations, comprehensive income, cash flows, and stockholders' equity for the year then ended, and the related notes (not presented herein); and in our report dated February 12, 2024, we expressed an unqualified audit opinion on those Consolidated Financial Statements. In our opinion, the information set forth in the accompanying consolidated balance sheet as of December 31, 2023, is fairly stated, in all material respects, in relation to the consolidated balance sheet from which it has been derived.

Basis for Review Results

These financial statements are the responsibility of the Company's management. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission (SEC) and the PCAOB. We conducted our review in accordance with the standards of the PCAOB. A review of interim financial statements consists principally of applying analytical procedures and making inquiries of persons responsible for financial and accounting matters. It is substantially less in scope than an audit conducted in accordance with the standards of the PCAOB, the objective of which is the expression of an opinion regarding the financial statements taken as a whole. Accordingly, we do not express such an opinion.

/s/ Ernst & Young LLP
Atlanta, Georgia
April 10, 2024

Delta Air Lines, Inc. | March 2024 Form 10-Q 2

Financial Statements

DELTA AIR LINES, INC.

Consolidated Balance Sheets

(Unaudited)

(in millions, except share data)March 31, 2024December 31, 2023
ASSETS
Current Assets:
Cash and cash equivalents$3,877$2,741
Short-term investments5891,127
Accounts receivable, net of allowance for uncollectible accounts of $16 and $173,7483,130
Fuel, expendable parts and supplies inventories, net of allowance for obsolescence of $124 and $1231,4521,314
Prepaid expenses and other1,9131,957
Total current assets11,57910,269
Noncurrent Assets:
Property and equipment, net of accumulated depreciation and amortization of $22,156 and $21,70735,91535,486
Operating lease right-of-use assets6,7857,004
Goodwill9,7539,753
Identifiable intangibles, net of accumulated amortization of $913 and $9115,9815,983
Equity investments3,2473,457
Other noncurrent assets1,7091,692
Total noncurrent assets63,39063,375
Total assets$74,969$73,644
LIABILITIES AND STOCKHOLDERS' EQUITY
Current Liabilities:
Current maturities of debt and finance leases$2,809$2,983
Current maturities of operating leases742759
Air traffic liability10,1937,044
Accounts payable4,5414,446
Accrued salaries and related benefits3,0374,561
Loyalty program deferred revenue4,0183,908
Fuel card obligation1,1001,100
Other accrued liabilities2,0381,617
Total current liabilities28,47826,418
Noncurrent Liabilities:
Debt and finance leases16,55517,071
Pension, postretirement and related benefits3,5243,601
Loyalty program deferred revenue4,5234,512
Noncurrent operating leases6,2036,468
Deferred income taxes, net994908
Other noncurrent liabilities3,5413,561
Total noncurrent liabilities35,34036,121
Commitments and Contingencies
Stockholders' Equity:
Common stock at $0.0001 par value; 1,500,000,000 shares authorized, 657,166,677 and 654,671,194 shares issued——
Additional paid-in capital11,68811,641
Retained earnings5,6225,650
Accumulated other comprehensive loss(5,793)(5,845)
Treasury stock, at cost, 11,854,394 and 11,224,246 shares(366)(341)
Total stockholders' equity11,15111,105
Total liabilities and stockholders' equity$74,969$73,644
The accompanying notes are an integral part of these Condensed Consolidated Financial Statements.

Delta Air Lines, Inc. | March 2024 Form 10-Q 3

Financial Statements

DELTA AIR LINES, INC.

Condensed Consolidated Statements of Operations and Comprehensive Income/(Loss)

(Unaudited)

Three Months Ended March 31,
(in millions, except per share data)20242023
Operating Revenue:
Passenger$11,131$10,411
Cargo178209
Other2,4392,139
Total operating revenue13,74812,759
Operating Expense:
Salaries and related costs3,7913,386
Aircraft fuel and related taxes2,5982,676
Ancillary businesses and refinery1,3701,125
Contracted services1,0241,010
Landing fees and other rents748584
Aircraft maintenance materials and outside repairs679585
Depreciation and amortization615564
Regional carrier expense550559
Passenger commissions and other selling expenses550500
Passenger service413416
Aircraft rent136132
Profit sharing12572
Pilot agreement and related expenses—864
Other535563
Total operating expense13,13413,036
Operating Income/(Loss)614(277)
Non-Operating Expense:
Interest expense, net(205)(227)
Gain/(loss) on investments, net(227)122
Loss on extinguishment of debt(4)(22)
Miscellaneous, net(56)(102)
Total non-operating expense, net(492)(229)
Income/(Loss) Before Income Taxes122(506)
Income Tax (Provision)/Benefit(85)143
Net Income/(Loss)$37$(363)
Basic Earnings/(Loss) Per Share$0.06$(0.57)
Diluted Earnings/(Loss) Per Share$0.06$(0.57)
Comprehensive Income/(Loss)$89$(316)
The accompanying notes are an integral part of these Condensed Consolidated Financial Statements.

Delta Air Lines, Inc. | March 2024 Form 10-Q 4

Financial Statements

DELTA AIR LINES, INC.

Condensed Consolidated Statements of Cash Flows

(Unaudited)

Three Months Ended March 31,
(in millions)20242023
Net Cash Provided by Operating Activities$2,408$2,235
Cash Flows from Investing Activities:
Property and equipment additions:
Flight equipment, including advance payments(883)(630)
Ground property and equipment, including technology(310)(370)
Purchase of short-term investments—(999)
Redemption of short-term investments546897
Other, net102
Net cash used in investing activities(637)(1,100)
Cash Flows from Financing Activities:
Payments on debt and finance lease obligations(712)(1,166)
Cash dividends(64)—
Other, net(11)(13)
Net cash used in financing activities(787)(1,179)
Net Increase/(Decrease) in Cash, Cash Equivalents and Restricted Cash Equivalents984(44)
Cash, cash equivalents and restricted cash equivalents at beginning of period3,3953,473
Cash, cash equivalents and restricted cash equivalents at end of period$4,379$3,429
Non-Cash Transactions:
Right-of-use assets acquired or modified under operating leases$(34)$208
Flight and ground equipment acquired or modified under finance leases625
Operating leases converted to finance leases—30
The following table provides a reconciliation of cash, cash equivalents and restricted cash equivalents reported within the Consolidated Balance Sheets to the total of the same such amounts shown above:
March 31,
(in millions)20242023
Current assets:
Cash and cash equivalents$3,877$3,215
Restricted cash included in prepaid expenses and other126160
Noncurrent assets:
Restricted cash included in other noncurrent assets37654
Total cash, cash equivalents and restricted cash equivalents$4,379$3,429
The accompanying notes are an integral part of these Condensed Consolidated Financial Statements.

Delta Air Lines, Inc. | March 2024 Form 10-Q 5

Financial Statements

DELTA AIR LINES, INC.

Consolidated Statements of Stockholders' Equity

(Unaudited)

Common StockAdditional Paid-In CapitalRetained EarningsAccumulated Other Comprehensive LossTreasury Stock
(in millions, except per share data)SharesAmountSharesAmountTotal
Balance at December 31, 2023655$—$11,641$5,650$(5,845)11$(341)$11,105
Net income———37———37
Dividends declared ($0.10 per share)———(65)———(65)
Other comprehensive income————52——52
Common stock issued for employee equity awards(1)2—47——1(25)22
Balance at March 31, 2024657$—$11,688$5,622$(5,793)12$(366)$11,151

(1)Treasury shares were withheld for payment of taxes, at a weighted average price per share of $39.83 in the March 2024 quarter.

Common StockAdditional Paid-In CapitalRetained EarningsAccumulated Other Comprehensive LossTreasury Stock
(in millions, except per share data)SharesAmountSharesAmountTotal
Balance at December 31, 2022652$—$11,526$1,170$(5,801)11$(313)$6,582
Net loss———(363)———(363)
Other comprehensive income————47——47
Common stock issued for employee equity awards(1)2—18———(24)(6)
Balance at March 31, 2023654$—$11,544$807$(5,754)11$(337)$6,260

(1)Treasury shares were withheld for payment of taxes, at a weighted average price per share of $39.73 in the March 2023 quarter.

The accompanying notes are an integral part of these Condensed Consolidated Financial Statements.

Delta Air Lines, Inc. | March 2024 Form 10-Q 6

Notes to the Condensed Consolidated Financial Statements

DELTA AIR LINES, INC.

Notes to the Condensed Consolidated Financial Statements

(Unaudited)

NOTE 1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Basis of Presentation

The accompanying unaudited Condensed Consolidated Financial Statements include the accounts of Delta Air Lines, Inc. and our consolidated subsidiaries, and have been prepared in accordance with accounting principles generally accepted in the United States ("GAAP") for interim financial information. Consistent with these requirements, this Form 10-Q does not include all the information required by GAAP for complete financial statements. As a result, this Form 10-Q should be read in conjunction with the Consolidated Financial Statements and accompanying Notes in our Form 10-K for the year ended December 31, 2023.

Management believes the accompanying unaudited Condensed Consolidated Financial Statements reflect all adjustments, including normal recurring items, considered necessary for a fair statement of results for the interim periods presented.

Due to seasonal variations in the demand for air travel, the volatility of aircraft fuel prices and other factors, operating results for the three months ended March 31, 2024 are not necessarily indicative of operating results for the entire year.

We reclassified certain prior period amounts to conform to the current period presentation. Unless otherwise noted, all amounts disclosed are stated before consideration of income taxes.

NOTE 2. REVENUE RECOGNITION

Passenger Revenue

Three Months Ended March 31,
(in millions)20242023
Ticket$9,833$9,239
Loyalty travel awards844743
Travel-related services454429
Passenger revenue$11,131$10,411

Ticket

We recognized approximately $3.9 billion in passenger revenue during both the three months ended March 31, 2024 and 2023 that had been recorded in our air traffic liability balance at the beginning of those periods.

Loyalty Travel Awards

Loyalty travel awards revenue is related to the redemption of mileage credits ("miles") for air travel. Our SkyMiles loyalty program allows customers to earn miles by flying on Delta, Delta Connection and other airlines that participate in the loyalty program. Customers can also earn miles through participating companies, such as credit card, retail, ridesharing, car rental and hotel companies, who purchase miles from us. Our most significant contract to sell miles relates to our co-brand credit card relationship with American Express. During the three months ended March 31, 2024 and 2023, total cash sales from marketing agreements related to our loyalty program were $1.8 billion and $1.7 billion, respectively, which are allocated to travel and other performance obligations.

Current Activity of the Loyalty Program. Miles are combined in one homogeneous pool and are not separately identifiable. Therefore, revenue is comprised of miles that were part of the loyalty program deferred revenue balance at the beginning of the period as well as miles that were issued during the period. The timing of mile redemptions can vary widely; however, the majority of miles have historically been redeemed within two years of being earned.

Delta Air Lines, Inc. | March 2024 Form 10-Q 7

Notes to the Condensed Consolidated Financial Statements

The table below presents the activity of the current and noncurrent loyalty program deferred revenue and includes miles earned through travel and miles sold to participating companies, which are primarily through marketing agreements.

Loyalty program activity
(in millions)20242023
Balance at January 1$8,420$7,882
Miles earned1,021999
Miles redeemed for air travel(844)(743)
Miles redeemed for non-air travel and other(56)(40)
Balance at March 31$8,541$8,098

Travel-Related Services

Travel-related services are primarily composed of services performed in conjunction with a passenger’s flight and include baggage fees, administrative fees and on-board sales.

Other Revenue

Three Months Ended March 31,
(in millions)20242023
Refinery$1,185$916
Loyalty program795726
Ancillary businesses180231
Miscellaneous279266
Other revenue$2,439$2,139

Refinery. This represents refinery sales to third parties. See Note 9, "Segments," for more information on revenue recognition within our refinery segment.

Loyalty Program. This relates to revenues from brand usage by third parties and other performance obligations embedded in miles sold, which are included within the total cash sales from marketing agreements, discussed above. This also includes the redemption of miles for non-air travel and other awards.

Ancillary Businesses. This includes aircraft maintenance services we provide to third parties and our vacation wholesale operations.

Miscellaneous. This is primarily composed of lounge access, including access provided to certain American Express cardholders, and codeshare revenues.

Delta Air Lines, Inc. | March 2024 Form 10-Q 8

Notes to the Condensed Consolidated Financial Statements

Revenue by Geographic Region

Operating revenue for the airline segment is recognized in a specific geographic region based on the origin, flight path and destination of each flight segment. A significant portion of the refinery segment's revenues typically consists of fuel sales to support the airline, which is eliminated in the Condensed Consolidated Financial Statements. The remaining operating revenue for the refinery segment is included in the domestic region. Our passenger and operating revenue by geographic region is summarized in the following tables:

Passenger revenue by geographic region
Three Months Ended March 31,
(in millions)20242023
Domestic$7,983$7,594
Atlantic1,3051,244
Latin America1,2651,132
Pacific578441
Total$11,131$10,411
Operating revenue by geographic region
Three Months Ended March 31,
(in millions)20242023
Domestic$10,031$9,396
Atlantic1,5811,548
Latin America1,4421,280
Pacific694535
Total$13,748$12,759

NOTE 3. FAIR VALUE MEASUREMENTS

Assets/(Liabilities) Measured at Fair Value on a Recurring Basis

(in millions)March 31, 2024Level 1Level 2Level 3
Cash equivalents$2,495$2,495$—$—
Restricted cash equivalents501501——
Short-term investments
U.S. Government securities473101372—
Corporate obligations86—86—
Other fixed income securities30—30—
Long-term investments and related2,6412,387139115
Fuel hedge contracts(22)—(22)—
(in millions)December 31, 2023Level 1Level 2Level 3
Cash equivalents$1,545$1,545$—$—
Restricted cash equivalents653653——
Short-term investments
U.S. Government securities859204655—
Corporate obligations218—218—
Other fixed income securities50—50—
Long-term investments and related2,8672,614134119
Fuel hedge contracts5—5—

Delta Air Lines, Inc. | March 2024 Form 10-Q 9

Notes to the Condensed Consolidated Financial Statements

Cash Equivalents and Restricted Cash Equivalents. Cash equivalents generally consist of money market funds. Restricted cash equivalents generally consist of money market funds, time deposits, commercial paper and negotiable certificates of deposit. Restricted cash equivalents primarily relate to proceeds from debt issued to finance, among other things, a portion of the construction costs for our new terminal facilities at New York's LaGuardia Airport as well as certain self-insurance obligations and airport commitments. Restricted cash equivalents are recorded in prepaid expenses and other on our Consolidated Balance Sheet ("balance sheet"). The fair value of these cash equivalents is based on a market approach using prices generated by market transactions involving identical or comparable assets.

Short-Term Investments. The fair values of our short-term investments are based on a market approach using industry standard valuation techniques that incorporate observable inputs such as quoted market prices, interest rates, benchmark curves, credit ratings of the security and other observable information. These investments are expected to mature in one year or less.

Long-Term Investments and Related. Our long-term investments measured at fair value primarily consist of equity investments, which are valued based on market prices or other observable transactions and inputs, and are recorded in equity investments on our balance sheet. Our equity investments in private companies are classified as Level 3 in the fair value hierarchy as their equity is not traded on a public exchange and our valuations incorporate certain unobservable inputs, including non-public equity issuances. Fair value measurement using unobservable inputs is inherently uncertain, and a change in significant inputs could result in different fair values. See Note 4, "Investments," for further information on our equity investments.

Fuel Hedge Contracts. Our derivative contracts to hedge the financial risk from changing fuel prices are related to inventory at our wholly-owned subsidiary, Monroe Energy, LLC ("Monroe"). We recognized losses of $96 million and gains of $31 million on our fuel hedge contracts in aircraft fuel and related taxes on our Condensed Consolidated Statements of Operations and Comprehensive Income/(Loss) ("income statement") for the three months ended March 31, 2024 and 2023, respectively. The losses recognized during the first three months of 2024 were composed of $27 million of mark-to-market losses and $69 million of settlement losses on contracts. Gains and losses on settled contracts are reflected within Monroe's operating results. See Note 9, "Segments," for further information on our Monroe refinery segment.

NOTE 4. INVESTMENTS

Equity investments ownership interest and carrying value
Accounting TreatmentOwnership InterestCarrying Value
(in millions)March 31, 2024December 31, 2023March 31, 2024December 31, 2023
Air France-KLMFair Value3%3%$82$110
China EasternFair Value2%2%116134
Grupo AeroméxicoEquity Method20%20%441421
Hanjin KALFair Value(1)15%15%439561
LATAMFair Value10%10%756658
Unifi AviationEquity Method49%49%161162
Wheels UpFair Value(2)38%38%756903
Other investmentsVarious496508
Equity investments$3,247$3,457

(1)At March 31, 2024, we held 14.8% of the outstanding shares (including common and preferred), and 14.9% of the common shares, of Hanjin KAL.

(2)Our voting rights with respect to Wheels Up are capped at 29.9%.

Delta Air Lines, Inc. | March 2024 Form 10-Q 10

Notes to the Condensed Consolidated Financial Statements

NOTE 5. DEBT

Summary of outstanding debt by category
MaturityInterest Rate(s) Per Annum atMarch 31,December 31,
(in millions)DatesMarch 31, 202420242023
Unsecured Payroll Support Program Loans2030to20311.00%$3,496$3,496
Unsecured notes2024to20292.90%to7.38%2,5752,590
Financing arrangements secured by SkyMiles assets:
SkyMiles Notes(1)2024to20284.50%and4.75%4,3814,518
SkyMiles Term Loan(1)(2)2024to20279.07%1,5981,772
NYTDC Special Facilities Revenue Bonds(1)2025to20454.00%to6.00%3,5913,656
Financing arrangements secured by aircraft:
Certificates(1)2024to20282.00%to8.00%1,5821,591
Notes(1)(2)2024to20334.00%to7.59%94165
Financing arrangements secured by slots, gates and/or routes:
2020 Senior Secured Notes20257.00%812838
2018 Revolving Credit Facility(2)2026to2028Undrawn——
Other financings(1)(2)2024to20302.51%to5.00%6767
Other revolving credit facilities(2)2024to2026Undrawn——
Total secured and unsecured debt$18,196$18,693
Unamortized (discount)/premium and debt issue cost, net and other(69)(83)
Total debt$18,127$18,610
Less: current maturities(2,551)(2,625)
Total long-term debt$15,576$15,985

(1)Due in installments during the years shown above.

(2)Certain financings are comprised of variable rate debt. All variable rates are equal to SOFR (generally subject to a floor) or another index rate, plus a specified margin.

Availability Under Revolving Credit Facilities

As of March 31, 2024, we had approximately $2.9 billion undrawn and available under our revolving credit facilities.

Fair Value of Debt

Market risk associated with our fixed- and variable-rate debt relates to the potential reduction in fair value and negative impact to future earnings, respectively, from an increase in interest rates. The fair value of debt shown below is principally based on reported market values, recently completed market transactions and estimates based on interest rates, maturities, credit risk and underlying collateral. Debt is primarily classified as Level 2 within the fair value hierarchy.

Fair value of outstanding debt
(in millions)March 31, 2024December 31, 2023
Net carrying amount$18,127$18,610
Fair value$18,000$18,400

Covenants

Our debt agreements contain various affirmative, negative and financial covenants. We were in compliance with the covenants in our debt agreements at March 31, 2024.

Delta Air Lines, Inc. | March 2024 Form 10-Q 11

Notes to the Condensed Consolidated Financial Statements

NOTE 6. EMPLOYEE BENEFIT PLANS

Employee benefit plans net periodic cost
Pension BenefitsOther Postretirement and Postemployment Benefits
(in millions)2024202320242023
Three Months Ended March 31,
Service cost$3$—$23$18
Interest cost2012134550
Expected return on plan assets(263)(264)(1)—
Amortization of prior service credit——(1)(1)
Recognized net actuarial loss626053
Net periodic cost$3$9$71$70

Service cost is recorded in salaries and related costs in our income statement, while all other components are recorded within miscellaneous, net under non-operating expense.

NOTE 7. COMMITMENTS AND CONTINGENCIES

Aircraft Purchase Commitments

Our future aircraft purchase commitments totaled approximately $20.7 billion at March 31, 2024.

Aircraft purchase commitments**(1)**
(in millions)Total
Nine months ending December 31, 2024$2,990
20253,970
20264,990
20275,020
20282,980
Thereafter770
Total$20,720

(1)The timing of these commitments is based on our contractual agreements with the aircraft manufacturers and remains uncertain due to supply chain, manufacturing and regulatory constraints.

Our future aircraft purchase commitments included the following aircraft at March 31, 2024:

Aircraft purchase commitments by fleet type
Aircraft TypePurchase Commitments
A220-30076
A321-200neo101
A330-900neo12
A350-90016
A350-100020
B-737-10100
Total325

Aircraft Orders

In January 2024, we entered into a purchase agreement with Airbus for 20 A350-1000 aircraft, with an option to purchase an additional 20 widebody aircraft. Deliveries of these aircraft are scheduled to begin in 2026.

Delta Air Lines, Inc. | March 2024 Form 10-Q 12

Notes to the Condensed Consolidated Financial Statements

Legal Contingencies

We are involved in various legal proceedings related to employment practices, environmental issues, commercial disputes, antitrust and other regulatory matters concerning our business. We record liabilities for losses from legal proceedings when we determine that it is probable that the outcome in a legal proceeding will be unfavorable and the amount of loss can be reasonably estimated. Although the outcome of the legal proceedings in which we are involved cannot be predicted with certainty, we believe that the resolution of current matters will not have a material adverse effect on our Condensed Consolidated Financial Statements.

NOTE 8. ACCUMULATED OTHER COMPREHENSIVE LOSS

Components of accumulated other comprehensive loss
(in millions)Pension and Other Benefit LiabilitiesOtherTax EffectTotal
Balance at January 1, 2024$(6,681)$40$796$(5,845)
Reclassifications into earnings(1)66—(14)52
Balance at March 31, 2024$(6,615)$40$782$(5,793)
Balance at January 1, 2023$(6,624)$41$782$(5,801)
Reclassifications into earnings(1)62—(15)47
Balance at March 31, 2023$(6,562)$41$767$(5,754)

(1)Amounts reclassified from accumulated other comprehensive loss for pension and other benefit liabilities are recorded in miscellaneous, net in non-operating expense in our income statement.

Delta Air Lines, Inc. | March 2024 Form 10-Q 13

Notes to the Condensed Consolidated Financial Statements

NOTE 9. SEGMENTS

Refinery Operations

Our refinery segment operates for the benefit of the airline segment by providing jet fuel to the airline segment from its own production and from jet fuel obtained through agreements with third parties. The refinery's production consists of jet fuel, as well as non-jet fuel products. We use several counterparties to exchange non-jet fuel products produced by the refinery for jet fuel consumed in our airline operations.

Segment Reporting

Segment results are prepared based on our internal accounting methods described below, with reconciliations to consolidated amounts in accordance with GAAP. Our segments are not designed to measure operating income or loss directly related to the products and services included in each segment on a stand-alone basis.

Financial information by segment
(in millions)AirlineRefineryIntersegment Sales/OtherConsolidated
Three Months Ended March 31, 2024
Operating revenue$12,563$2,049$(864)(1)$13,748
Depreciation and amortization61527(27)(2)615
Operating income(2)56549—614
Interest expense, net2055(5)205
Total assets, end of period72,8752,123(29)74,969
Capital expenditures1,17815—1,193
Three Months Ended March 31, 2023
Operating revenue$11,843$2,352$(1,436)(1)$12,759
Depreciation and amortization56423(23)(2)564
Operating (loss)/income(2)(499)222—(277)
Interest expense, net2274(4)227
Total assets, end of period70,1833,005(54)73,134
Capital expenditures97129—1,000

(1)See table below for detail of the intersegment operating revenue amounts.

(2)Refinery segment operating results, including depreciation and amortization, are included within aircraft fuel and related taxes in our income statement.

Operating Revenue Intersegment Sales/Other
Three Months Ended March 31,
(in millions)20242023
Sales to airline segment(1)$(386)$(596)
Exchanged products(2)(439)(714)
Sales of refined products(39)(126)
Total Operating Revenue Intersegment Sales/Other$(864)$(1,436)

(1)Represents transfers, valued on a market price basis, from the refinery to the airline segment for use in airline operations. We determine market price for jet fuel from the refinery by reference to the market index for the primary delivery location, which is New York Harbor.

(2)Represents value of products delivered under our exchange agreements, as discussed above, determined on a market price basis.

Delta Air Lines, Inc. | March 2024 Form 10-Q 14

Notes to the Condensed Consolidated Financial Statements

NOTE 10. EARNINGS/(LOSS) PER SHARE

We calculate basic earnings/(loss) per share and diluted loss per share by dividing net income/(loss) by the weighted average number of common shares outstanding, excluding restricted shares. We calculate diluted earnings per share by dividing net income by the weighted average number of common shares outstanding plus the dilutive effect of outstanding share-based instruments, including stock options, restricted stock awards and warrants. Antidilutive common stock equivalents excluded from the diluted earnings per share calculation are not material. The following table shows the computation of basic and diluted earnings/(loss) per share:

Basic and diluted earnings/(loss) per share
Three Months Ended March 31,
(in millions, except per share data)20242023
Net income/(loss)$37$(363)
Basic weighted average shares outstanding640639
Dilutive effect of share-based instruments5—
Diluted weighted average shares outstanding645639
Basic earnings/(loss) per share$0.06$(0.57)
Diluted earnings/(loss) per share$0.06$(0.57)

Delta Air Lines, Inc. | March 2024 Form 10-Q 15

Item 2. MD&A

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

The following discussion and analysis of our financial condition and results of operations should be read in conjunction with our Condensed Consolidated Financial Statements and the related notes and other financial information included elsewhere in this Quarterly Report on Form 10-Q and our audited Consolidated Financial Statements and related notes included in our 2023 Form 10-K.

March 2024 Quarter Financial Highlights

Our operating income for the March 2024 quarter improved $891 million compared to the March 2023 quarter to $614 million for the reasons discussed below.

Revenue. Compared to the March 2023 quarter, our total revenue increased $989 million, or 8%, due primarily to a 7% increase in capacity and continued strength in travel demand across all geographic regions, particularly for our premium products. Total revenue, adjusted (a non-GAAP financial measure, which excludes revenue related to refinery sales to third parties) increased in the March 2024 quarter by $721 million, or 6%, compared to the March 2023 quarter.

Operating Expense. Total operating expense in the March 2024 quarter increased $98 million, or 1%, compared to the March 2023 quarter, primarily due to higher employee costs from increased wages and profit sharing and increased costs associated with higher capacity, partially offset by the one time pilot agreement-related expenses in 2023. Total operating expense, adjusted (a non-GAAP financial measure) in the March 2024 quarter increased $627 million, or 6%, compared to the March 2023 quarter. Adjustments were primarily to exclude expenses related to refinery sales to third parties and the one time pilot agreement-related expenses in 2023.

Our total operating cost per available seat mile ("CASM") decreased 6% compared to the March 2023 quarter, primarily due to a 7% increase in capacity, as well as the one time pilot agreement-related expenses in 2023. Non-fuel unit cost ("CASM-Ex", a non-GAAP financial measure) increased 1.5%, primarily due to higher employee costs from increased wages and profit sharing.

Cash Flow. Our cash, cash equivalents, short-term investments and aggregate undrawn principal amount available under our revolving credit facilities ("liquidity") as of March 31, 2024 was $7.4 billion.

During the March 2024 quarter, operating activities generated $2.4 billion. Cash flows from operating activities benefited from the sale of tickets to managed corporate customers, including tickets for travel during and beyond the quarter, which grew 14% during the March 2024 quarter compared to the March 2023 quarter, led by large accounts, particularly in the technology, consumer services and financial services sectors. In addition, total cash sales to American Express were $1.7 billion in the March 2024 quarter, an increase of approximately 5% compared to the March 2023 quarter.

Cash flows used in investing activities during the quarter totaled $637 million as capital expenditures were partially offset by redemptions of short-term investments. These operating and investing activities yielded free cash flow (a non-GAAP financial measure) of $1.4 billion in the March 2024 quarter. Additionally, we had cash outflows of $712 million related to repayments of our debt and finance leases.

The non-GAAP financial measures referenced above for total revenue, adjusted, operating expense, adjusted, CASM-Ex and free cash flow are defined and reconciled in "Supplemental Information" below.

Delta Air Lines, Inc. | March 2024 Form 10-Q 16

Item 2. MD&A - Results of Operations

Results of Operations - Three Months Ended March 31, 2024 and 2023

Total Operating Revenue

Three Months Ended March 31,Increase (Decrease)% Increase (Decrease)
(in millions)(1)20242023
Ticket - Main cabin$5,425$5,223$2024%
Ticket - Premium products4,4084,01639210%
Loyalty travel awards84474310114%
Travel-related services454429256%
Passenger revenue$11,131$10,411$7207%
Cargo178209(31)(15)%
Other2,4392,13930014%
Total operating revenue$13,748$12,759$9898%
TRASM (cents)20.98¢20.80¢0.18¢1%
Third-party refinery sales(1.81)(1.49)(0.32)21%
TRASM, adjusted(2)19.17¢19.30¢(0.13)¢(0.7)%

(1)Total amounts in the table above may not calculate exactly due to rounding.

(2)Total Revenue per available seat mile ("TRASM"), adjusted is a non-GAAP financial measure. For additional information on adjustments to TRASM, see "Supplemental Information" below.

Compared to the March 2023 quarter, total revenue increased $989 million, or 8%, due primarily to a 7% increase in capacity and continued strength in travel demand across all geographic regions, particularly for our premium products.

See "Refinery Segment" below for additional details on the refinery's operations, including third party refinery sales.

Passenger Revenue by Geographic Region

Increase (Decrease) vs. Three Months Ended March 31, 2023
(in millions)Three Months Ended March 31, 2024Passenger RevenueRPMs (Traffic)ASMs (Capacity)Passenger Mile YieldPRASMLoad Factor
Domestic$7,9835%5%2%—%3%2pts
Atlantic1,3055%6%2%(1)%2%3pts
Latin America1,26512%26%27%(12)%(12)%—pts
Pacific57831%34%36%(2)%(4)%(1)pt
Total$11,1317%9%7%(2)%—%2pts

Domestic

Domestic passenger revenue increased 5% in the March 2024 quarter compared to the March 2023 quarter on a 2% increase in capacity and two point increase in load factor. We experienced strong revenue results across the domestic network, with coastal hub markets such as New York and Boston improving significantly compared to the prior year period.

International

International passenger revenue for the March 2024 quarter increased compared to the March 2023 quarter in each geographic region. Passenger unit revenue declined 3% as we continued to invest in rebuilding our Latin and Pacific networks. Strong demand for international travel, particularly to leisure destinations, enabled a one point increase in load factor on a 16% increase in capacity compared to the March 2023 quarter.

Delta Air Lines, Inc. | March 2024 Form 10-Q 17

Item 2. MD&A - Results of Operations

Other Revenue

Three Months Ended March 31,Increase (Decrease)% Increase (Decrease)
(in millions)20242023
Refinery$1,185$916$26929%
Loyalty program7957266910%
Ancillary businesses180231(51)(22)%
Miscellaneous279266135%
Other revenue$2,439$2,139$30014%

Refinery. Refinery sales to third parties increased $269 million compared to the March 2023 quarter due to higher sales volume. See "Refinery Segment" below for additional details on the refinery's operations, including third party refinery sales.

Loyalty Program. This relates to revenues from brand usage by third parties and other performance obligations embedded in miles sold, as well as redemption of miles for non-air travel and other awards. These revenues are mainly driven by customer spend on American Express cards and new cardholder acquisitions. Revenues from our relationship with American Express increased compared to the March 2023 quarter due to increased co-brand card spend.

Delta Air Lines, Inc. | March 2024 Form 10-Q 18

Next: Item 2. MD&A - Results of Operations