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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.
Find the latest travel deals on flights, hotels and rental cars. Book airline tickets and MileagePlus award tickets to worldwide destinations.
Check the status of your United Airlines flight by searching by route or flight number. Stay up to date with our flight status tools.
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.
Help with trips. See how to check in for flights, watch your flight's status, register for TSA PreCheck and more. TSA PreChecklink opens in new window. Get through security faster with a Known Traveler Numbers. Global Entrylink opens in new window.
View your options if your flight has been delayed or canceled. international travel requirements. Travel to and from certain airports might be impacted. View our Travel Alerts page for the most up-to-date information about your flight options.
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.
We have a few tips to help you make changes to your trip: 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. Traveler pro tips.
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.