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Book United Airlines cheap flights to 300+ destinations worldwide on our official site. Find our most popular flight deals and earn MileagePlus® miles.

You can modify your trip or manage your reservation by going to My trips. Find MileagePlus ® contact information for your region. Book your trip online at any time. Get additional help through our Help Center.

Check the status of your United Airlines flight by searching by route or flight number. Stay up to date with our flight status tools.

Check in for your United or United Express-operated flight, depending on where you are in your travel experience.

See how to check in for flights, watch your flight's status, register for TSA PreCheck and more. Support with everything you'll need and want to do once you're off the plane. Update your account info, check on your award miles balance, help accessing your account and more. Request or check the status of a refund or get in touch with customer care.

Sign in to your MileagePlus account on the official website of United Airlines.

If you’d prefer to book your reservation over the phone, call 1-800-UNITED-1 (1-800-864-8331). A fee may apply for redemption by phone. You’ll be asked to provide the last name of the certificate recipient.

Future flight credits are issued if you cancel your trip or change your flight to a less expensive one. These credits can be used to book travel on United, United Express, and partner-operated flights purchased on our website or app.

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