In an effort to equip older U.S. aircraft with new engines and to sidestep U.S. tariffs on imports from Europe, Delta Air Lines (NYSE:DAL) is stripping grounded Airbus A321neos of their Pratt & Whitney (RTX) engines and shipping them back to the U.

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.

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.

Delta Air Lines said on Thursday its bookings have stabilized, prompting it to forecast a brighter profit outlook for coming quarters, even as

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

Airline executives are turning their focus to premium cabins, where demand is holding up better than in the back of the plane.

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

Delta flight 127 was flying from Madrid to New York on July 6, but was forced to make an emergency landing on the small remote island in the middle of the Atlantic Ocean.

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.