Southwest Shares Drop 6.2% Despite Earnings Beat as Jet Fuel Bills Surge $900 Million
U.S. airlines beat second-quarter earnings forecasts yet sold off as fuel costs jumped 83-84% year-over-year at American and United with Brent briefly crossing $100.
Southwest Airlines shares fell 6.2% on Thursday (2026-07-23) even though the carrier posted second-quarter profit and revenue ahead of analyst expectations, according to Asahi and AP reporting. The session coincided with ICE Brent crude briefly surpassing $100 per barrel following the collapse of a three-week U.S.-Iran diplomatic process, which had temporarily eased geopolitical pressure on crude supply.2,3
The fuel cost arithmetic explains the sell-off. Southwest's fuel expenses rose by $900 million year-over-year in the second quarter, oilprice.com reported. A revenue beat provides limited shelter when the airline's single largest variable cost is running close to a billion dollars above year-ago levels.3
American Airlines faced the same problem at larger scale. The carrier posted second-quarter revenue of $16.7 billion — a 16.3% year-over-year increase and the highest quarterly revenue in company history — yet its fuel expense jumped by more than $2.2 billion, or 83%, from the same period a year earlier, oilprice.com reported. American shares dropped 9.1% on Thursday (2026-07-23) despite the record revenue figure.3,1
United Airlines provided the most explicit forward cost signal the week of 2026-07-13, disclosing it expects nearly $6 billion in additional fuel expense for full-year 2026 relative to its projections at the start of the year. In the second quarter, United's fuel costs rose $2.3 billion, or 84% year-over-year, though quarterly profit came in near the top end of guidance. The carrier also raised $3.7 billion in new liquidity through private bank transactions during the quarter.3
The U.S. jet fuel market had been tightening since March 2026, oilprice.com reported. AP reported ICE Brent climbing 6.1% to $99.78 on Thursday (2026-07-23) as renewed Middle East fighting raised fresh supply concerns. Southwest had moved to address the tightening market earlier: a shipment of roughly 12.6 million gallons of jet fuel arrived in Los Angeles at the end of May 2026 as the airline worked to ease upward cost pressure in its procurement pipeline.3,1
By Sunday (2026-07-26), ICE Brent crude had retreated to $87.52 per barrel. But that pullback does not unwind the damage already priced into full-year cost structures. United's $6 billion incremental fuel cost estimate reflects pricing across the entire first half of 2026, not only the Thursday (2026-07-23) spike.3
European equity markets also fell on Thursday (2026-07-23). France's CAC 40 shed 1.6%, among the larger single-session declines across major indices, as the crude surge compounded pressure from weak technology earnings. The S&P 500 dropped 0.8% on the day, according to AP, and was tracking toward its first back-to-back weekly loss since March.2,1
American just posted record quarterly revenue and still took a 9.1% equity hit on Thursday (2026-07-23). United's $6 billion incremental fuel cost estimate for 2026 was struck against prices already seen in the first half of the year; a sustained return of ICE Brent crude to $100 would make that figure look conservative before the year is out.3,1