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.

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

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.

Delta topped Wall Street expectations for the quarter and reinstated full-year guidance. The company is feeling much more upbeat about the quarters to come than it was three months ago, propelling the stock higher.

Delta Air Lines was one of the top-performing stocks in the S&P 500 Thursday after the carrier reported better second-quarter results than analysts had expected and reinstated its full-year outlook.

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

Svetlana Dali, who was found guilty of stowing away on a New York flight bound for Paris last year, was sentenced on Thursday to time served with one year of supervised release.