Are there changes to your plans? Our same-day confirmed flight change helps you switch flights if the seat is accessible to square measure. Confirmed changes are created on the same day throughout the arrival window. Alaska Airlines flight change policy is incredibly customer-friendly. For the first half, the flight square measure varies free. The AA flight change policy allows passengers to make free changes to their plane tickets within twenty-four hours of purchase. Passengers will change their price tag for free under the Alaska Modification Flight 24-Hour Policy, which waives off the revision price if the flight is modified within twenty-four hours.