United kicks off earnings season with a warning wrapped in a beat

United Airlines opened the airline earnings calendar this week with a paradox investors are still digesting: strong demand, record unit revenue, and a nearly $6 billion fuel bill hanging over the rest of the year.

The Chicago carrier reported second-quarter results on July 15 that topped Wall Street estimates, with revenue up 16% year on year to $17.67 billion and adjusted earnings of $1.99 a share against expectations near $1.85. Total unit revenue rose 12.1%, the fastest pace since early 2023, powered by premium cabins, corporate travel and loyalty. Contracted business revenue jumped 27%.

Yet the market flinched. Shares slipped roughly 3% after hours, fixating on guidance rather than the beat. Net income fell more than 17% to $805 million, and United's third-quarter forecast of $2.50 to $3.50 a share landed below the $3.62 analysts wanted.

The culprit is jet fuel. Prices at major US airports climbed 34% in July alone amid the on-again, off-again conflict between the US and Iran, and United said higher oil could add close to $6 billion to full-year costs versus its January assumptions. Second-quarter fuel spending rose 84% from a year earlier to $2.3 billion.

CEO Scott Kirby leaned into the airline's playbook. "United is built to thrive in every environment," he said, noting the carrier moved quickly to trim schedules when oil spiked in March. United says it recovered about half the extra fuel cost last quarter and expects to claw back 80% to 90% in the third.

United raised the low end of its full-year outlook to $9 to $11 a share. The real test comes July 23, when American reports and investors learn whether resilient demand can outrun the fuel curve across the industry.