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.

Delta Flight 127, which departed Madrid, Spain diverted to the volcanic island of Terceira in the Azores. Passengers were stranded 29 hours there.

A Delta jet, carrying nearly 300 travelers and crew, incurred engine problems over the Atlantic before landing on an island in the middle of the ocean where passengers had to spend the night, officials said Thursday.

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

Delta Air Lines passengers spent a day on the remote Azores island chain, nearly 1,000 miles from the European mainland.

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.

With limited demand for lower-priced fares, carriers are poised to reduce domestic main-cabin capacity by about 1% by September, Delta Air Lines President Glen Hauenstein said Thursday.

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.

Delta second quarter results, the first from the airline industry, continued a trend of increased revenue from premium segments and diminished domestic revenue.