At a time when most airlines are raising fees, Frontier Airlines today announced they are lowering fees for itinerary changes. There is an asterisk, however. Changes made 90 days out from travel date are free. Previously, the fee was $99. Most airlines, but not all, charge $200 for changes to itineraries.
If the change is less than 90 days from travel, but more than two weeks, the fee is $49.