With airline stocks, quality matters. American has $29.4 billion in long-term debt, about double Delta's total. While the airline should have the wherewithal to cover that debt, it does leave the company more vulnerable to a potential downturn up ahead.

Delta Air Lines posted record revenues on Thursday. Main cabin revenue fell 5%, but rose 5% for premium products as post-pandemic trends continue.

Airlines stocks took off on Thursday, boosted by Delta reporting better-than-expected earnings and reinstating its full-year guidance. Here are the key chart levels to monitor for shares of three major U.

Delta Air Lines, the world’s largest carrier by revenue, reported upbeat second quarter results and reinstated its guidance as growing economic clarity deflects headwinds resulting from a global trade war.

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.

Analysts expect that airlines will have a tepid earnings season as tariff uncertainty and declining U.S. dollar weigh on the industry.

A Delta Air Lines flight from Madrid to New York had to make an emergency landing on a tiny island in the Azores, in the middle of the Atlantic, due to a reported mechanical issue