Japan Airlines Mileage Bank is JAL's rewards program, where you can earn points through shopping, renting a car, booking hotels, and, of course, purchasing flights. If you're already a member of Japan Airlines Mileage Bank, you may be able to earn points when booking your airline tickets with Expedia. Click on the name of your loyalty program when you get to the checkout page and then enter your membership number Members of One Key™, our free travel rewards program, to find out if your trip is eligible. On top of their airline miles, also earn OneKeyCash™* which can be redeemed on future trips. *Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.