Jal Airlines' Refund Policy guides on how you can receive a refund if you cancel a flight. JAL's Refund Policy offers refunds depending on the kind of ticket you have and the time at which you cancel. According to Japan Airlines' Cancellation Policy, if you cancel your ticket within 24 hours after purchase, you will receive a 100% refund. Few tickets are refundable in full, but some will incur charges. For more, contact Jal Airlines customer service at 877-350-4939.