The airlines ability to bump you off the flight is basically governed by airline’s contract of carriage and Passenger Bill of Rights with a more detailed description on the US Dot’s Air Consumer site.
The only thing that they describe where you are entitled to compensation for being “bumped” off the flight if the flight was oversold and you had a reservation, however, there is no such provisions for the standby passenger nor there is provision for delayed or canceled flight more specifically:
Each airline has its own policies about what it will do for delayed passengers waiting at the airport; there are no federal requirements.
In this particular case Frontier chose a frequent customer over you though they were within their rights to cancel or change his/her reservation but chose not to do so.
Credit:stackoverflow.com‘
5 Mar, 2024
4 Mar, 2024