You may have already booked (or intend to book) a ticket with Alaska Airlines because of their strong loyalty programme and reputation for exceptional customer care. With COVID19, travel flexibility is more important than ever. Learn about Alaska Airlines Delay Compensation and how it may affect your reservation if you have or plan to buy an Alaska Airlines ticket. Passengers from all across the world can cancel their Alaska Airlines flights within 24 hours. Alaska Airlines' 24-hour flight cancellation policy is based on standards set forth by the United States Department of Transportation. Alaska Airlines' flight cancellation policy is that if you need to cancel your flight within 24 hours of booking, they will refund you in full.