How far in advance should I change my flight date with ALASKA Airlines? ALASKA Airlines recommends making changes as early as possible to secure preferred alternative flights. However, changes can be made up to the day of departure, subject to availability and fare rules. Can I change my flight date multiple times? In most cases, you can change your flight date multiple times, though each change may incur additional fees or fare differences. Specific details can be provided by calling +1-877-738-0609. What happens if I need to change my flight date due to a medical emergency? ALASKA Airlines may consider waiving change fees or offering special accommodations in the case of a medical emergency.