Exhibit 99.1

Delta Air Lines Announces December Quarter and Full Year 2024 Financial Results

Delivered record December quarter revenue and operating profit with industry-leading operational performance

Reported record full year 2024 revenue, $5 billion of pre-tax income, $8 billion of operating cash flow and $3.4 billion of free cash flow

Guiding to 2025 earnings of greater than $7.35 per share and free cash flow of greater than $4 billion

Expect March quarter revenue growth of 7 to 9 percent with earnings of $0.70 to $1.00 per share

ATLANTA, January 10, 2025 – Delta Air Lines (NYSE: DAL) today reported financial results for the December quarter and full year 2024 and provided its outlook for the March quarter and full year 2025. Highlights of the December quarter and full year 2024, including both GAAP and adjusted metrics, are on page six and incorporated here.

“2024 was a great year for Delta with our results reflecting differentiation from the industry and increased durability. Our people finished the year strong, delivering industry-leading operational and financial performance. Sharing Delta’s success is core to our culture, and I’m excited to recognize our people's outstanding efforts with $1.4 billion in profit sharing payments next month,” said Ed Bastian, Delta’s chief executive officer.

“As we move into 2025, we expect strong demand for travel to continue, with consumers increasingly seeking the premium products and experiences that Delta provides. Our differentiated strategy and best-in-class operations, combined with demand strength and an increasingly constructive industry backdrop, position us to deliver the best financial year in Delta's 100-year history, with pre-tax income greater than $6 billion, earnings per share greater than $7.35 and free cash flow of more than $4 billion.”

December Quarter 2024 GAAP Financial Results

December Quarter 2024 Non-GAAP Financial Results

Full Year 2024 GAAP Financial Results

Full Year 2024 Adjusted Financial Results

Financial Guidance1

2025 guidance for earnings greater than $7.35 per share is more than 10 percent growth year-over-year compared to a normalized 2024 earnings per share baseline, excluding the 45-cent impact of the CrowdStrike-caused outage in the September quarter. On a non-GAAP basis, 2025 earnings per share guidance represents greater than 19 percent growth year-over-year.

Revenue Environment and Outlook

"Delta built momentum as we closed out 2024, with December quarter total revenue growth of 5.7 percent coming in ahead of guidance as our team delivered industry-leading operational performance and demand trends accelerated through the quarter,” said Glen Hauenstein, Delta's president. "With strength continuing into the new year, we expect March quarter adjusted revenue to be 7 to 9 percent higher than 2024 on growth in capacity and unit revenue."

*Corporate travel sales represent the revenue from tickets sold to corporate contracted customers, including tickets for travel during and beyond the referenced time period

Cost Performance and Outlook

“Delta delivered the most profitable December quarter in our history with pre-tax income of $1.6 billion, up $500 million over prior year. Through the year, our teams delivered industry-leading operational performance and maintained a focus on driving efficiency that supported low-single digit non-fuel unit cost growth, consistent with our outlook at the start of the year and among the best in the industry,” said Dan Janki, Delta’s chief financial officer. “As efficiency gains continue, we expect non-fuel unit cost growth to continue in the low-single digits for the full year 2025 as efficiencies offset the impact of slower capacity growth and continued investments in our people and the customer experience.”

December Quarter 2024 Cost Performance

Full Year 2024 Cost Performance

Balance Sheet, Cash and Liquidity

“In 2024, Delta delivered $3.4 billion of free cash flow while reinvesting nearly $5 billion into the business. With continued prioritization of the balance sheet, leverage improved to 2.6x and Delta returned to investment grade at all three credit rating agencies, accomplishing a key milestone and reflecting our financial durability,” Janki said. “In 2025, we expect to grow free cash flow to over $4 billion, supporting meaningful debt repayment and further leverage improvement to 2x or less as we progress towards our long-term gross leverage target of 1x."

*Includes cash and cash equivalents, short-term investments and undrawn revolving credit facilities

December Quarter and Full Year 2024 Highlights

Operations, Network and Fleet

Culture and People

Customer Experience and Loyalty

Environmental, Social and Governance

1FlightStats preliminary data for Delta flights mainline system, Delta's competitive set (AA, UA, B6, AS, WN, and DL) from Oct 1 - Dec 31, 2024. On-time is defined as A0

2Relative to what Delta would have used without undertaking any fuel efficiency efforts

December Quarter and Full Year 2024 Results

December quarter and full year results have been adjusted primarily for the third-party refinery sales and gains/losses on investments as described in the reconciliations in Note A.

About Delta Air Lines Through exceptional service and the power of innovation, Delta Air Lines (NYSE: DAL) never stops looking for ways to make every trip feel tailored to every customer.

There are 100,000 Delta people leading the way to deliver a world-class customer experience on up to 5,000 peak day flights to more than 290 destinations on six continents, connecting people to places and to each other. 

Delta served more than 200 million customers in 2024 -- safely, reliably and with industry-leading customer service innovation – and was recognized by J.D. Power this year for being No. 1 in First/Business and Premium Economy Passenger Satisfaction. The airline also was recognized again as North America’s most on-time airline in 2024 and our people earned the Platinum Award for Operational Excellence from Cirium.

We remain committed to ensuring that the future of travel is connected, personalized and enjoyable. Our people’s genuine and enduring motivation is to make every customer feel welcomed and cared for across every point of their journey with us.

Headquartered in Atlanta, Delta operates significant hubs and key markets in Amsterdam, Atlanta, Bogota, Boston, Detroit, Lima, London-Heathrow, Los Angeles, Mexico City, Minneapolis-St. Paul, New York-JFK and LaGuardia, Paris-Charles de Gaulle, Salt Lake City, Santiago (Chile), Sao Paulo, Seattle, Seoul-Incheon and Tokyo.

As the leading global airline, Delta's mission to connect the world creates opportunities, fosters understanding and expands horizons by connecting people and communities to each other and to their own potential.

Powered by innovative and strategic partnerships throughout the world with Aeromexico, Air France-KLM, China Eastern, Korean Air, LATAM, Virgin Atlantic and WestJet, Delta brings more choice and competition to customers worldwide. Delta’s premium product line is elevated by its unique partnership with Wheels Up Experience.

Delta is America's most-awarded airline thanks to the dedication, passion and professionalism of its people. In addition to the awards from J.D. Power and Cirium, Delta has been recognized as the top U.S. airline by the Wall Street Journal; among Fast Company’s Most Innovative Companies; the World’s Most Admired Airline and one of the Best 100 Companies to Work For according to Fortune; one of Glassdoor’s Best Places to Work; the top carrier for business travelers by Business Travel News; and topped 5 categories, including the Best U.S. Airline award, in Forbes Travel Guide’s Verified Air Travel Awards. In addition, Delta has been named to the Civic 50 by Points of Light for the past seven years as one of the most community minded companies in the U.S.

Forward Looking Statements

Statements made in this press release that are not historical facts, including statements regarding our estimates, expectations, beliefs, intentions, projections, goals, aspirations, commitments or strategies for the future, should be considered “forward-looking statements” under the Securities Act of 1933, as amended, the Securities Exchange Act of 1934, as amended, and the Private Securities Litigation Reform Act of 1995. Such statements are not guarantees or promised outcomes and should not be construed as such. All forward-looking statements involve a number of risks and uncertainties that could cause actual results to differ materially from the estimates, expectations, beliefs, intentions, projections, goals, aspirations, commitments and strategies reflected in or suggested by the forward-looking statements. These risks and uncertainties include, but are not limited to, the possible effects of serious accidents involving our aircraft or aircraft of our airline partners; breaches or lapses in the security of technology systems we use and rely on, which could compromise the data stored within them, as well as failure to comply with evolving global privacy and security regulatory obligations or adequately address increasing customer focus on privacy issues and data security; disruptions in our information technology infrastructure; our dependence on technology in our operations; increases in the cost of aircraft fuel; extended disruptions in the supply of aircraft fuel, including from Monroe Energy, LLC (“Monroe”), a wholly-owned subsidiary of Delta that operates the Trainer refinery; failure to receive the expected results or returns from our commercial relationships with airlines in other parts of the world and the investments we have in certain of those airlines; the effects of a significant disruption in the operations or performance of third parties on which we rely; failure to comply with the financial and other covenants in our financing agreements; labor issues; the effects on our business of seasonality and other factors beyond our control, such as changes in value in our equity investments, severe weather conditions, natural disasters or other environmental events, including from the impact of climate change; failure or inability of insurance to cover a significant liability at Monroe’s refinery; failure to comply with existing and future environmental regulations to which Monroe’s refinery operations are subject, including costs related to compliance with renewable fuel standard regulations; significant damage to our reputation and brand, including from exposure to significant adverse publicity or inability to achieve certain sustainability goals; our ability to retain senior management and other key employees, and to maintain our company culture; disease outbreaks, such as the COVID-19 pandemic or similar public health threats, and measures implemented to combat them; the effects of terrorist attacks, geopolitical conflict or security events; competitive conditions in the airline industry; extended interruptions or disruptions in service at major airports at which we operate or significant problems associated with types of aircraft or engines we operate; the effects of extensive government regulation we are subject to; the impact of environmental regulation, including but not limited to regulation of hazardous substances, increased regulation to reduce emissions and other risks associated with climate change, and the cost of compliance with more stringent environmental regulations; and unfavorable economic or political conditions in the markets in which we operate or volatility in currency exchange rates.

Additional information concerning risks and uncertainties that could cause differences between actual results and forward-looking statements is contained in our Securities and Exchange Commission (SEC) filings, including our Annual Report on Form 10-K for the fiscal year ended December 31, 2023 and subsequent quarterly reports and other filings filed with the SEC from time to time. Caution should be taken not to place undue reliance on our forward-looking statements, which represent our views only as of the date of this press release, and which we undertake no obligation to update except to the extent required by law.

DELTA AIR LINES, INC.

Consolidated Statements of Operations

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Passenger Revenue

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Other Revenue

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DELTA AIR LINES, INC.

Total Revenue

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Statistical Summary

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Consolidated Statements of Cash Flows

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The following table provides a reconciliation of cash, cash equivalents and restricted cash reported within the Consolidated Balance Sheets to the total of the same such amounts shown above:

DELTA AIR LINES, INC.

Consolidated Balance Sheets

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Note A: The following tables show reconciliations of non-GAAP financial measures. The reasons Delta uses these measures are described below. Reconciliations may not calculate due to rounding.

Delta sometimes uses information ("non-GAAP financial measures") that is derived from the Consolidated Financial Statements, but that is not presented in accordance with accounting principles generally accepted in the U.S. (“GAAP”). Under the Securities and Exchange Commission rules, non-GAAP financial measures may be considered in addition to results prepared in accordance with GAAP, but should not be considered a substitute for or superior to GAAP results. The tables below show reconciliations of non-GAAP financial measures used in this release to the most directly comparable GAAP financial measures.

Forward Looking Projections. Delta is not able to reconcile forward looking non-GAAP financial measures without unreasonable effort because the adjusting items such as those used in the reconciliations below will not be known until the end of the period and could be significant.

Adjustments. These reconciliations include certain adjustments to GAAP measures that are made to provide comparability between the reported periods, if applicable, and for the reasons indicated below:

Third-party refinery sales. Refinery sales to third parties, and related expenses, are not related to our airline segment. Excluding these sales therefore provides a more meaningful comparison of our airline operations to the rest of the airline industry.

MTM adjustments on investments. Mark-to-market ("MTM") adjustments are defined as fair value changes recorded in periods other than the settlement period. Unrealized gains/losses result from our equity investments that are accounted for at fair value in non-operating expense. The gains/losses are driven by changes in stock prices, foreign currency fluctuations and other valuation techniques for investments in certain companies, particularly those without publicly-traded shares. Adjusting for these gains/losses allows investors to better understand and analyze our core operational performance in the periods shown.

MTM adjustments and settlements on hedges. MTM fair value changes are not necessarily indicative of the actual settlement value of the underlying hedge in the contract settlement period, and therefore we remove this impact to allow investors to better understand and analyze our core performance. Settlements represent cash received or paid on hedge contracts settled during the applicable period.

Loss on extinguishment of debt. This adjustment relates to early termination of a portion of our debt. Adjusting for these losses allows investors to better understand and analyze our core operational performance in the periods shown.

Realized gain on sale of investments. This adjustment relates to gains on the sale of investments generated in adjusted results that had previously been included in GAAP results. During the September and December 2024 quarters, we sold our investment in CLEAR. Adjusting for this gain allows investors to better understand and analyze our core operational performance in the periods shown.

One-time pilot agreement expenses. In the March 2023 quarter, Delta pilots ratified a new four-year Pilot Working Agreement effective January 1, 2023. The agreement included a provision for a one-time payment made upon ratification in the March 2023 quarter of $735 million. Additionally, we recorded adjustments to other benefit-related items of approximately $130 million. Adjusting for these expenses allows investors to better understand and analyze our core cost performance.

Operating Revenue, adjusted and Total Revenue Per Available Seat Mile ("TRASM"), adjusted

Pre-Tax Income, Net Income, and Diluted Earnings per Share, adjusted

Operating Cash Flow, adjusted. We present operating cash flow, adjusted because management believes adjusting for the following items provide a more meaningful measure for investors:

Net cash flows related to certain airport construction projects and other. Cash flows related to certain airport construction projects are included in our GAAP operating activities. We have adjusted for these items, which were primarily funded by cash restricted for airport construction, to provide investors a better understanding of the company's operating cash flow that is core to our operations in the periods shown.

Pilot agreement payment. In March 2023, Delta pilots ratified a new four-year Pilot Working Agreement effective January 1, 2023. The agreement includes a provision for a one-time payment upon ratification in the March 2023 quarter of $735 million. We adjust for this item to provide investors a better understanding of our recurring free cash flow generated by our operations.

Free Cash Flow. We present free cash flow because management believes this metric is helpful to investors to evaluate the company's ability to generate cash that is available for use for debt service or general corporate initiatives. Free cash flow is also used internally as a component of our incentive compensation programs. Free cash flow is defined as net cash from operating activities and net cash from investing activities, adjusted for (i) net redemptions of short-term investments and (ii) net cash flows related to certain airport construction projects. These adjustments are made for the following reasons:

Net redemptions of short-term investments. Net redemptions of short-term investments represent the net purchase and sale activity of investments and marketable securities in the period, including gains and losses. We adjust for this activity to provide investors a better understanding of the company's free cash flow generated by our operations.

Net cash flows related to certain airport construction projects and other. Cash flows related to certain airport construction projects are included in our GAAP operating activities and capital expenditures. We have adjusted for these items, which were primarily funded by cash restricted for airport construction, to provide investors a better understanding of the company's free cash flow and capital expenditures that are core to our operations in the periods shown.

Operating Income, adjusted

Operating Margin, adjusted

Pre-Tax Margin, adjusted

Adjusted Debt to Earnings Before Interest, Taxes, Depreciation, Amortization and Rent ("EBITDAR"). We present adjusted debt to EBITDAR because management believes this metric is helpful to investors in assessing the company's overall debt profile. Adjusted debt includes total operating lease liabilities (including fleet, ground and other), sale-leaseback financing liabilities and unfunded pension liabilities. We calculate EBITDAR by adding depreciation and amortization to GAAP operating income and adjusting for the fixed portion of operating lease expense.

After-tax Return on Invested Capital ("ROIC"). We present after-tax return on invested capital as management believes this metric is helpful to investors in assessing the company's ability to generate returns using its invested capital. Return on invested capital is tax-effected adjusted operating income (using our effective tax rate for each respective period) divided by average adjusted invested capital. Average stockholders' equity and average adjusted gross debt are calculated using amounts as of the end of the current period and comparable period in the prior year. All adjustments to calculate ROIC are intended to provide a more meaningful comparison of our results to comparable companies.

Interest expense included in aircraft rent. This adjustment relates to interest expense related to operating lease transactions. Adjusting for these results allows investors to better understand our core operational performance in the periods shown as it neutralizes the effect of lease financing structure.

Operating revenue, adjusted related to premium products and diverse revenue streams

Operating Expense, adjusted

Adjusted Non-Fuel Cost and Non-Fuel Unit Cost or Cost per Available Seat Mile, ("CASM-Ex")

We adjust operating expense and CASM for certain items described above, as well as the following items and reasons described below:

Aircraft fuel and related taxes. The volatility in fuel prices impacts the comparability of year-over-year financial performance. The adjustment for aircraft fuel and related taxes allows investors to better understand and analyze our non-fuel costs and year-over-year financial performance.

Profit sharing. We adjust for profit sharing because this adjustment allows investors to better understand and analyze our recurring cost performance and provides a more meaningful comparison of our core operating costs to the airline industry.

Total fuel expense, adjusted and Average fuel price per gallon, adjusted