1-844-414-9223 Alaska Airlines 24-hour cancellation policy allows passengers to cancel your flights for a full refund within 24 hours of booking, according to Alaska Airlines cancellation and refund policy. There are no cancellation or change fees, and you won't have to wait for those bother some calls from Alaska Airlines if you need to cancel your flight tickets. You can easily and quickly cancel your subscription by visiting the official website or using the mobile app.