Delta's revenue from premium seats like business class rose 6% in the first half of the year to $10.6 billion, while main cabin economy ticket revenue dropped 4% to $11.7 billion. The carrier, the most profitable U.S. airline, has said for years that its share of sales from high-end seats and its lucrative loyalty program has been growing.

Stocks are off to a sluggish start on Wall Street, while Delta Air Lines led a rally in airline stocks after releasing a solid outlook for the rest of 2025.

Delta Air Lines said on Thursday its bookings have stabilized, prompting it to forecast a brighter profit outlook for coming quarters, even as pricing pressures continue to weigh on industry margins.

According to Fiscal.ai data, analysts expect the company to post second-quarter EPS of $2.05 on revenue of $16.18 billion.