Hawaiian Airlines Delay Policy:- Hawaiian Airlines has enacted a Hawaiian Airlines 24-Hour Cancellation policy as a result of paying attention to their customers. When making travel plans, it gives travelers more advantages & possibilities. Flyers may cancel their flight up to 24 hours after making their reservation, provided they adhere to the airline's 24-hour cancellation policy. You would get a complete refund from Hawaiian Airlines if you purchased your flight more than 7 days in advance. The 24-hour cancellation policy of Hawaiian Airlines is subject to change at any time.