Fly with flexibility
If your trip is coming up and you’re more than a day away from departure, you may be able to change your reservation with no change fees.
You can adjust your travel plans without any change fees — including for award tickets — for flights within the U.S., or for international travel originating in the U.S. This applies to most United Economy® and all premium cabin tickets. You’ll just pay the fare difference if your new flight is more expensive.
For award tickets not originating in the U.S., there won’t be a change fee as long as the ticket is changed more than 30 days before departure, but there may be a difference in the fare.