FILE – In this July 2, 2021 file photo, a United Airlines jetliner taxis down a runway for take off from Denver International Airport in Denver. United Airlines has been fined, Friday, Sept. 24, 2021, $1.9 million over 25 delayed flights in which passengers were stuck on the ground for at least three hours. It’s the largest fine ever imposed by the U.S. Transportation Department for such long delays.(AP Photo/David Zalubowski, file) (David Zalubowski/AP)
