NEW YORK, Sept. 6 (Xinhua) -- The Joe Biden administration is examining the four largest U.S. airline frequent-flyer programs and how they devalue points that consumers have earned and frequently change the number of points or miles needed to book flights.
Transportation Secretary Pete Buttigieg wrote to the CEOs of American, Delta, Southwest and United on Thursday, asking each for a report on policies, fees and other features of their loyalty program.
