Delta Air Lines Cuts 2026 Profit on Surging Jet Fuel

Delta Air Lines cut its 2026 adjusted earnings outlook to $5.10 to $5.60 a share on October 9 after a $6 billion jump in fuel costs. Chief executive Ed Bastian said travelers are still booking even as fares rise.

The new midpoint is $5.35, down $1.65 from the $7.00 midpoint Delta set on July 10. United, American, and Southwest report later in October, so this is the first full-year number the rest of the group has to mark to.

Delta Cuts 2026 Earnings by $1.65 at the Midpoint

Delta’s September quarter results and 2026 outlook also lowered free cash flow to about $2.5 billion from the July range of $3 to $4 billion. Year-end gross leverage is now about 2.2 times, versus a July target of about 2 times, even with a plan to pay down more than $2 billion of debt.

Adjusted earnings were $1.72 a share in the September quarter, the first miss of Wall Street estimates in two years. GAAP net income was $756 million, or $1.15 a share, down 47% from $1.42 billion a year earlier. Adjusted operating revenue was a September-quarter record $17.6 billion, up 16% on flat flying. GAAP operating revenue was $20.2 billion, up 21%.

Bastian said the airline still expects a full-year pre-tax profit of about $4.5 billion. Adjusted pre-tax profit in the quarter was $1.5 billion, matching last year, while the adjusted operating margin slipped to 9.4% from 11.1%.

JULY GUIDANCE VERSUS THE OCTOBER CUT

Chief financial officer Erik Snell said the September quarter absorbed more than $500 million of extra fuel versus the early-July plan, and still landed “in line with last year” on adjusted earnings. Year-to-date free cash flow is $1.9 billion. The September quarter itself produced $463 million of free cash flow after $1.4 billion of capital spending.

A $6 Billion Fuel Bill Ate the July Outlook

Adjusted fuel expense was $4.1 billion in the quarter, up 62% from a year earlier. The adjusted price was $3.61 a gallon, up 60% from $2.25, after a 13-cent benefit from Delta’s Trainer, Pennsylvania, refinery, which is run by wholly owned Monroe Energy.

Snell told investors the December quarter assumes fuel at the forward curve as of October 2, including a refinery benefit of about 40 cents a gallon. That produces an all-in price of about $4.25 a gallon, and December earnings of $1.15 to $1.65 a share on an operating margin of 7% to 9%.

The Spot Price Delta Now Flies Against

The U.S. Gulf Coast jet fuel spot price, the U.S. benchmark series from the Energy Information Administration, settled at $4.342 a gallon on October 6. That is more than double the level of a year earlier on the same series.

The August fuel bill for U.S. airlines shows the same squeeze at industry scale. Scheduled carriers spent $6.17 billion on fuel in August, up 60.2% from $3.85 billion a year earlier, while burning 1.2% less fuel. The average price paid was $3.72 a gallon, up from $2.30.

The 40-Cent Help From Trainer

Delta’s refinery is the buffer other network carriers do not have. The December guide builds in about 40 cents a gallon of help, up from 13 cents in the September quarter and 5 cents in the July plan for that quarter. Without that credit, the $4.25 all-in figure would sit closer to the Gulf Coast spot market that has been hanging above $4.30.

Non-fuel unit costs still rose. Cost per seat mile excluding fuel was 14.03 cents, up 7.3%, on flying that came in several points below the original plan, including nearly one point from summer storms. Snell said December non-fuel unit cost growth should ease by 1 to 2 points, and that 2027 is still aimed at low-single-digit unit cost growth once flying normalizes.

The Premium Cabin Now Pays More Than Coach

Premium ticket sales were $6.82 billion, up 18%, on 6% more premium seats and higher loads. Main cabin ticket sales were $6.80 billion, up 12%. That is the crossover: the front of the plane now brings in slightly more ticket money than coach.

Main cabin unit revenue still rose 17% even with seats down by a low-single-digit rate, which is how Delta is covering fuel without filling the jet with cheap seats. Commercial chief Joe Esposito said September-quarter revenue grew about 16% on flat capacity, “as we cover higher costs and manage the business for margins.”

Diverse streams were 61% of total revenue. Cargo rose 29%. Maintenance-repair work rose 28%, to $990 million year to date. Loyalty revenue rose 18%, American Express payments rose 15%, and Delta said full-year Amex remuneration is on track to exceed $9 billion. Corporate sales grew at a double-digit rate in every sector, led by banking, technology, and energy.

Domestic unit revenue rose 16%. International unit revenue rose 12%, with Latin up 22% and the Atlantic up 11%. Transpacific revenue rose 13% on 8% more flying. Load factor held at 86%. For December, Esposito said seats will grow less than 2%, including a cut in main cabin seats, while total revenue should rise about 20%.

Peers Without a Refinery Face a Thinner Year

Delta reports first among the big four, so its $5.10 to $5.60 range is the working 2026 profit map until United, American, and Southwest print. Those carriers already said in September they would rather park marginal flying than chase share with $4 jet fuel.

WHAT THE REST OF THE GROUP IS CARRYING

• United: The airline has also pointed to about $6 billion of extra fuel costs for 2026 and has already dropped some December flying, with more cuts possible in 2027 if prices stay high.
• American: It has no refinery and does not hedge fuel. In July it guided 2026 adjusted earnings from a 65-cent loss to a 65-cent profit, around breakeven, after earlier cuts in April.
• Southwest: It reports later in October and has already slowed the capacity growth it had planned for 2026.
• Passengers: Limited seat growth and sticky fares are how the fuel bill is being paid, which is why Delta can still talk about strong demand after missing its own summer profit plan.

United finance chief Mike Leskinen said in September the carrier is “not flying to maximize market share” and expects fuel to pass through to ticket prices with a lag. American finance chief Devon May said at the same time that a $1-a-gallon rise versus July’s fuel curve was adding about $1 billion of cost in the fourth quarter. Those comments were made before Delta moved its own full-year number.

What July’s $7 Midpoint Assumed About Jet Fuel

On July 10, Delta July forecast of $6.50 to $7.50 a share still stood, with free cash flow of $3 to $4 billion. Bastian said then that the airline was affirming a plan to grow earnings 20% and overcome a multi-billion-dollar fuel headwind. September-quarter earnings were supposed to be $2.00 to $2.50 a share, on an 11% to 13% operating margin, with fuel near $3.15 a gallon.

The quarter came in at $1.72 and a 9.4% adjusted margin. The fuel assumption missed by 46 cents a gallon. That is the whole revision in miniature: revenue did what management said it would do, and the fuel line did not.

HOW THE FUEL YEAR BROKE THE JULY PLAN

1. February 2026: The U.S.-Iran war begins, and jet fuel starts the first of two spikes this year.
2. July 10, 2026: Delta affirms full-year adjusted EPS of $6.50 to $7.50 and free cash flow of $3 to $4 billion, and guides the September quarter to $2.00 to $2.50.
3. September 16, 2026: United and American tell investors they will cut flying if fuel stays elevated, with American citing about $1 billion of extra fourth-quarter fuel cost.
4. October 2, 2026: The fuel forward curve Delta uses for December guidance is struck; the company later prices the quarter at about $4.25 a gallon after the refinery credit.
5. October 6, 2026: Gulf Coast spot jet fuel settles at $4.342 a gallon.
6. October 9, 2026: Delta cuts full-year EPS to $5.10 to $5.60 and free cash flow to about $2.5 billion.

Fares did not give back the spring increase when fuel eased in midsummer. Households therefore walked into the second spike already paying wartime ticket prices, which is how Delta can post 16% revenue growth and still miss the profit range it published in July.

23.4% Higher Airfares Carry the Fuel Bill

The August consumer price index, the latest full reading, showed airline fares 23.4% higher than a year earlier. Bastian said in an interview that fares have kept ticking up as Delta passes along much of the $6 billion fuel increase, and that bookings have held “across all channels, all cabins of service, all geographies, business, leisure.”

For the full year, we expect to generate a pre-tax profit of roughly $4.5 billion, absorbing a $6 billion increase in fuel costs.

Ed Bastian, chief executive officer, Delta Air Lines October 9 statement

He also called air travel “one of the best values in the consumer economy.” That claim sits next to a 23.4% fare increase and a 16% revenue gain on flat flying. The value, in the company’s telling, is that people still buy the ticket. The cost of keeping them buying is a $1.65 cut to the earnings midpoint and about $1 billion to $1.5 billion less free cash flow than July’s range implied.

A recent corporate survey, Delta said, found that more than 90% of respondents expect company travel to increase or stay the same in 2027. Profit-sharing accruals are nearly $900 million year to date toward the February payout, so the employee pool is still in the plan even as the shareholder cash number comes down.

December Is Priced at $4.25 a Gallon

December is now a 7% to 9% margin quarter, not the double-digit period Delta was describing in July. Snell said the upper end of $1.15 to $1.65 a share would be consistent with last year’s fourth quarter. Revenue is still guided up about 20%, faster than the 16% September-quarter pace, with main cabin seats down and total seats up less than 2%.

Adjusted net debt was $13.4 billion at quarter end, down $950 million from the end of 2025. Liquidity was $6.9 billion, including $3.1 billion of undrawn credit lines. Air traffic liability, tickets sold but not yet flown, was $9.6 billion. Delta took 13 aircraft in the quarter, including A350-900, A321neo, and A220-300 jets, and it still plans new 2027 routes from Seattle to Tokyo-Narita, Los Angeles to Manila, Austin to Paris, Detroit to Athens, and Boston to Venice.

Onboard internet sat beside the fuel story on October 9 because Elon Musk spent October 8 joking that AI labs should test models on Delta flights, “where accessing the Internet is utterly impossible.”

Excited to announce that all super intelligence organizations have now jointly agreed to the ultimate in AI/SI safety:

Moving all testing to Delta Airlines flights, where accessing the Internet is utterly impossible!

— Elon Musk (@elonmusk) October 8, 2026

Bastian said Delta talked with SpaceX about six years ago and that the company “wasn’t ready to scale,” and that there is “no tit-for-tat as far as I’m concerned.” Delta has been rolling free Wi-Fi for SkyMiles members across almost the full fleet and has said it will add Amazon Leo satellite internet. United, American, Southwest, and Alaska already fly Starlink. That fight does not move the $4.25 fuel deck.

United, American, and Southwest still have to say whether their 2026 profit numbers can live above Delta’s new range without a refinery credit. Until they do, the working figure for the group is $5.10 to $5.60, a $2.5 billion cash year, and a passenger bill that is already 23.4% higher than last August.

Disclaimer: This article is news reporting on Delta Air Lines’ September-quarter results and 2026 financial guidance, and it is for information only. It is not investment advice, a recommendation to buy or sell DAL or any other airline stock, and it is not a forecast of ticket prices or fuel costs you should trade on. Speak with a licensed financial adviser or investment professional before making decisions about airline shares, travel stocks, or related options. Earnings ranges, fuel prices, fare inflation readings, and peer guidance are taken from company statements and government series as of the dates named above and will change when later quarters, CPI releases, or rival earnings are published.