The US DoT investigates major airlines' frequent-flyer programs over point devaluation and requirement changes.

The U.S. Department of Transportation is investigating the frequent-flyer programs of American, Delta, Southwest, and United Airlines. This inquiry addresses consumer complaints about point devaluation and changes in point requirements for flights. Transportation Secretary Pete Buttigieg has requested detailed reports from the airlines to ensure transparency and fairness in these programs, which have significant implications for competition and consumer value.