how much does it cost to change a flight on american airlines
Allegiant does sell an add-on called TripFlex that waives these fees and allows changes to be made until one hour before departure. American Airlines has a whopping $200 change fee on paid fares (other than full fare refundable tickets) for domestic flights, and up to $450 for international flights. Same day changes are $75 in economy and free for business and first class passengers on paid fares.