Shop for your flight as you normally would. Once you get to checkout, all unused travel credits that are connected to your MileagePlus account will automatically appear once you select “Travel Credits” as a payment option. All you have to do is select the checkbox next to the credit and it will automatically be applied to your reservation.
If you don’t see one of your travel credits listed, or don’t have a MileagePlus account, you can also look up your credit directly from checkout and apply it to your cart.
All travel credits can be used to buy tickets on United, United Express and partner-operated flights purchased on our website or app. You can also apply travel credits toward non-ticket items, like Economy Plus® seating, Basic Economy seat assignments and preferred seating.
To use travel credits with PlusPoints, you’ll need to book your ticket using your travel credit and then request a PlusPoints upgrade.