There are a few ways to accumulate points when you lock in your airline tickets with Expedia. If you've signed up for the Air Wisconsin rewards program, United Mileage Plus, enter your membership number at the final stages of booking to see if your flight is eligible. Booking hotels, shopping and credit card purchases are other ways to build up points through United Mileage Plus. Plus, as a member of One Key™, our free travel rewards program, you can earn OneKeyCash™* on top of your airline miles. *Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.