Hawaiian Airlines' Flight Cancellation Policy offers flexibility based on ticket type. Passengers with refundable tickets can cancel their flight and receive a full refund without penalties. For non-refundable tickets, cancellations generally result in a travel credit or voucher, minus applicable fees. The airline provides a 24-hour cancellation window, allowing cancellations without penalties if made within 24 hours of booking and at least 7 days before the flight. Refunds for refundable tickets are processed within 7-10 business days, while non-refundable tickets offer travel credits with an expiration of one year.