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.

After withdrawing its outlook in April, Delta is again forecasting a profit—though at a significantly lower level than originally projected.

The airline’s upbeat outlook for the year has been dimmed by economic turbulence in the U.S. that made people hesitant to book flights.

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.