Jet Fuel Spike Exposes Costly Blind Spot in Airline Earnings

A 30% jet fuel price spike in three weeks is rewriting airline earnings overnight — and only some U.S. carriers have the pricing power to keep up.

A rapid surge in jet fuel prices is forcing U.S. airlines to rewrite their 2026 earnings forecasts, as higher fuel costs outpace revenue gains from strong travel demand.

The reversal reflects a fundamental mismatch in the airline business. Fuel markets can move sharply in days, but fare increases take weeks or months to feed through because they apply only to tickets yet to be sold.

Jet fuel spot prices surged nearly 30% between July 2 and July 22, 2026, as the U.S.-Iran ceasefire began to fray, climbing 78 cents to $3.59 a gallon. The conflict between the U.S.-Israel coalition and Iran disrupted 20% of global oil supplies moving through the Strait of Hormuz. Because airlines sell seats months ahead, millions of July and August travelers had already bought tickets priced against June’s lower fuel assumptions, leaving carriers to absorb the surge on seats already sold.

American Airlines’ Guidance Reversal

American Airlines was prepared to raise its 2026 earnings forecast earlier this month, expecting full-year pretax earnings approaching $1.5 billion. Thirteen days later, after its projected fuel bill for the rest of the year rose by nearly $1.6 billion, the airline cut its outlook instead.

American Chief Financial Officer Devon May said: “[I think] margins are going to be effectively down for the industry. If we had guided on the same day as Delta (July 10), we’d have been guiding up for the year.”

American reported record second-quarter revenue of $16.7 billion, up 16.3% from a year earlier, but operating income collapsed 60.7%. GAAP net income fell 88.1% to $71 million, while adjusted net income was $99 million, or $0.15 per share. Fuel expense rose more than $2.2 billion, or 83.3%, to $4.881 billion, and American recovered nearly half of that increase through higher fares.

American Airlines CEO Robert Isom said the growth exceeded the company’s initial expectations and continued its recent momentum.

Every one-cent increase in American’s average jet fuel price adds about $46 million in annual expenses. American reported results July 23, cutting its full-year adjusted guidance to a 65-cent loss to 65 cents per share and projecting a third-quarter adjusted loss of 70 cents to 10 cents per share.

American’s profit margins remain thinner than Delta’s and United’s, limiting its ability to absorb fuel shocks. If prices stay elevated, weaker cash generation could stall Isom’s debt-reduction targets and force cuts to less-profitable flying.

Delta Recovers Fastest Among Legacy Carriers

Delta Air Lines was the first major U.S. carrier to report second-quarter earnings, issuing guidance on July 10 based on fuel assumptions from July 2 — before the steepest part of the price surge. That timing allowed Delta to maintain its full-year earnings outlook.

Delta reported adjusted second-quarter revenue of $17.7 billion, up 14% from a year earlier, and adjusted earnings of $1.56 per share. Adjusted fuel expense rose 77% to $4.4 billion, with an average fuel price of $3.93 a gallon. The airline recovered about 60% of that increase through higher ticket yields, the highest recovery rate among the five carriers.

Delta CEO Ed Bastian said most U.S. carriers had been struggling to earn their cost of capital as industry airfares trailed inflation and costs reset higher. “As we predicted, structural change has accelerated, enabling the industry to recapture this year’s fuel cost inflation at the fastest pace of any recent cycle,” he said.

Bastian said the low end of the market still needs to raise fares by another 5% just to break even in today’s fuel environment, by Delta’s estimate. “There’s nothing to be gained by trying to grow in that environment,” he said. “What the opportunity has to be in finding ways to secure higher revenues, not higher market share.”

United Bets on Liquidity to Weather Volatility

United Airlines reported second-quarter adjusted earnings of $1.99 per share on revenue of $17.7 billion, up 16% from a year earlier, with a pretax margin of 4.8%. Fuel expense rose $2.3 billion, and United recovered about half of that increase.

United Airlines CEO Scott Kirby said on the company’s July 16 earnings call: “At this time last week, I was planning to tell you that we had a good line of sight to growing earnings year-over-year based on what we expected our guidance to be at the time. Fuel’s gone up a lot in the last week.”

The late-July surge added $575 million to United’s expected third-quarter fuel bill since the beginning of July. United changed its guidance policy to use the latest available fuel prices, projecting third-quarter adjusted earnings of $2.50 to $3.50 per share based on a fuel assumption of $3.69 a gallon, while raising the floor of its full-year guidance to $9 to $11 per share. United also raised $3.7 billion in new fixed-rate debt, boosting its available liquidity to $19.6 billion.

Southwest’s Low-Cost Model Under Strain

Southwest Airlines reported second-quarter operating revenue of $8.4 billion, up 16.4%, and adjusted earnings of $0.94 per share. Fuel expenses rose by nearly $900 million, and Southwest did not disclose what percentage it recovered through fares. The carrier cut its full-year adjusted earnings guidance to $3.25 to $4.25 per share, down from a January forecast of at least $4 per share.

Southwest President and CEO Bob Jordan said second-quarter results demonstrated the earnings power of the business, coming in well ahead of consensus expectations despite nearly $900 million of additional fuel expense. “Our business model now benefits from a broader and more diversified set of revenue and commercial levers than at any point in our history,” he said.

Southwest is moving away from its longstanding open-seating policy in favor of assigned seating and extra-legroom options.

Alaska Air Group’s Regional Exposure

Alaska Air Group posted a second-quarter GAAP net loss of $76 million, or an adjusted net loss of $102 million, on operating revenue of $4.065 billion. Its economic fuel cost averaged $4.43 a gallon, up 85% from a year earlier, adding $600 million in incremental fuel expense. Alaska recovered very little of that increase and declined to restore full-year guidance.

Alaska Air Group CEO Ben Minicucci said the results were defined by a fuel spike outside its control, even as the carrier led the industry in on-time performance, completed its Hawaiian integration, launched service to Europe and returned to profitability in June. “Absent the fuel headwind, we would have delivered a solidly profitable quarter,” he said.

Ryan St. John, Alaska’s vice president of finance, planning and investor relations, said: “You’ve got to choose a fuel price. You can guess at whatever you think fuel is, but the reality is none of us know.”

A 25-cent change in Alaska’s average fuel cost shifts its quarterly earnings by roughly 50 cents per share, the company said. Alaska executed $1 billion in new financing through senior unsecured notes and term loans and plans to acquire four Boeing 737-800 freighters, doubling its cargo fleet capacity by 2027.

Geopolitical Roots of the Fuel Shock

The volatility traces back to the 2026 war between the U.S.-Israel coalition and Iran, which has restricted nearly all commercial traffic through the Strait of Hormuz and disrupted 20% of global oil supplies. The International Energy Agency has characterized the disruption as “the largest supply disruption in the history of the global oil market.”

European jet fuel stocks reached record lows, and airlines in Southeast Asia and Oceania canceled routes because of physical shortages tied to their reliance on Middle Eastern crude.

Hostilities broke out Feb. 28, 2026, and Brent crude peaked at $118.35 a barrel on March 31. A memorandum to end the war, signed June 17, temporarily suppressed oil futures before an interim ceasefire collapsed July 8, resuming hostilities and igniting the latest price surge.

On July 26, U.S. Ambassador to the United Nations Mike Waltz confirmed President Donald Trump had paused strikes on Iran to allow room for diplomatic negotiations. “He’s giving talks some space. He’s giving a little bit of room,” Waltz said on Fox News Sunday.

Rystad Energy modeled four potential conflict scenarios, assigning a full resolution only a 5% probability, while a narrow deal resulting in what the firm called managed recovery and unresolved risk was given a 40% probability.