American Express has removed Frontier Airlines as an option for airline fee credits (the Platinum card provides up to $200 for incidental fees). People that have selected it as an airline for 2022 will continue to be able to use it until the end of the year, but you cannot select Frontier any longer and it won’t be given as an option for 2023. Frontier does have a lot of fees and they just launched an all you can fly pass but it isn’t clear why American Express made this decision.
Hat tip to devilm116
