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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.

Sign in to your MileagePlus account on the official website of United Airlines. Cookie Policy We use cookies for site functionality, user experience, to analyze traffic and to show personalized …

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.

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. Hours link opens in new window. See when United Club locations are lounges are open. …

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.

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

Enjoy discounts on over 4,500 flights to 300+ destinations. Some United deals also let you earn extra miles.

Book United Airlines’ lowest airfares and save when you bundle your hotel and car rental with United Packages, plus earn 1,000 miles per package. Search with ease for global destinations …