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United Airlines is a major American airline that offers online flight check-in and MileagePlus rewards program.
Book United Airlines cheap flights to 300+ destinations worldwide on our official site. Find our most popular flight deals and earn MileagePlus® miles.
Select adults, seniors and children Select Travelers. You are only allowed to book corporate travel for yourself. Learn more. Unaccompanied minors. Traveling with children. For 10+ travelers: Request a bid.
Find the latest travel deals on flights, hotels and rental cars. Book airline tickets and MileagePlus award tickets to worldwide destinations.
Earn up to 1,250 award miles and get up to 35% off time and mileage charges. Enjoy discounts on over 4,500 flights to 300+ destinations. Some United deals also let you earn extra miles.
Use miles to pre-pay for bags up to 24 hours before your flight or pay at check-in on united.com and the United app for all domestic flights.
You can change your flight on united.com or the United app in four steps: Go to My Trips. Select “Change flight”. Select “Edit” to update your flight. Choose a new flight. You can also change your flight over the phone, but you might be charged a fee.
Check in for your United or United Express-operated flight, depending on where you are in your travel experience.
For the U.S. flights, we recommend being at the gate 15 minutes before boarding starts. For international flights, we recommend being at the gate 30 minutes before boarding starts. You must be on board your flight 15 minutes before departure time.
Check the status of your United Airlines flight by searching by route or flight number. Stay up to date with our flight status tools.