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MileagePlus Service Center

Join MileagePlus

Start earning award miles that you can use for travel, hotels and car rentals, plus everyday purchases and activities.

Enroll in MileagePlus

Request missing award miles

See estimated timing for mileage credit, and request award miles that haven’t been reflected in your account within the appropriate time frame.

Learn more about requesting miles

Find your MileagePlus number or password

Retrieve your forgotten MileagePlus number or reset your password.

Retrieve your MileagePlus number
Reset your password

Merge duplicate accounts

If you have multiple MileagePlus accounts in your name, we recommend that you merge them into a single account.

Learn more about merging accounts

Cancel or re-deposit an award

See how to cancel an award reservation or request a re-deposit of award miles for an already canceled reservation.

Learn more about award re-deposit

Reinstate expired award miles

If your award miles have expired in the last 18 months, you can choose to purchase Reinstatement Miles.

Reinstate your miles

Change the name on your MileagePlus account

You can request an update if your name has changed or is otherwise listed incorrectly on your account.

Learn more about name changes

Contact MileagePlus

Write or call the MileagePlus Service Center.

View contact information

Mileage credit and expiration

Miles are subject to expiration from your MileagePlus account after 18 months of inactivity. If you earn miles through one of our partners, it may take up to eight weeks for the miles to credit to your account. If your miles expire after the transaction but before the miles are credited to your account, we will automatically reinstate your balance 7-10 days after the credit appears on your account.

MileagePlus rules:

The accrual of miles and Premier® qualifying credits, redemption of awards and provision of benefits through the United MileagePlus program, including the Premier Program, are subject to change and are subject to the rules of the MileagePlus program.

See the complete rules and details of the MileagePlus program