Shares of Delta Air Lines Inc. are leading the S&P 500 index Thursday, buoyed by the carrier’s better-than-expected second-quarter results and the company’s decision to restore its full-year guidance.

Delta Air Lines’ recent success set off a debate on Wall Street on whether the airline sector is primed to repeat a late-year rally.

Frontier CEO Barry Biffle warns that oversupply in the domestic airline market is leading to unprofitability, forcing ...

American Airlines reissued full-year adjusted earnings guidance, setting a lower target than it had earlier in the year before tariffs and a domestic travel slowdown prompted major airlines to ...

This was the stock's fourth consecutive day of losses.

Airlines stocks took off on Thursday, boosted by Delta reporting better-than-expected earnings and reinstating its full-year ...