copyright' date change policy allows passengers to modify their flight dates based on the type of ticket purchased. For refundable tickets, changes are allowed without a fee, though fare differences may apply. For non-refundable tickets, date changes incur a fee plus any fare difference. Changes must be made before the scheduled departure and usually within one year from the original ... https://americanairtravel.com/hawaiian-airlines-flight-cancellation-and-refund-policy/