Airlines are frustrating travelers by changing frequent flyer program rules – here's why they keep doing it
- Written by Jay L. Zagorsky, Clinical Associate Professor of Markets, Public Policy and Law, Boston University

As the U.S. holiday travel season picks up, many people are noticing that their frequent flyer benefits aren’t going as far as they used to.
In September 2023, Delta Air Lines revamped its frequent flyer program to make it tougher to earn status — a...