Allegiant Air Flight Change Policy

The Allegiant Air Flight Change Policy allows passengers to modify their travel plans, though rules vary depending on how far in advance the change is requested. Changes made within seven days of purchase are typically fee-free, provided the flight itself is at least seven days away. Beyond this window, a change fee usually applies, along with any fare difference between the original and new flight. Same-day changes may also be available for a smaller fee, subject to seat availability. Passengers can modify their bookings through the "My Trips" section on Allegiant's website or by contacting customer service directly for assistance.