Glen Hauenstein, president of Delta Air Lines Inc., left, and Ed Bastian, chief executive officer of Delta Air Lines Inc., right, ring the opening bell on the floor of the New York Stock Exchange (NYSE) in New York, US, on Wednesday, Nov. 12, 2025.Delta Air Lines President Glen Hauenstein, who propelled the carrier to become the industry's profit leader and championed the airline's lucrative embrace of travelers willing to spend a little extra for a more luxurious travel experience, is retiring in February. ...