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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.

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

United Airlines Help Center provides FAQs and guidance on flights, refunds, credits, baggage policy, MileagePlus, seats/upgrades, and more.

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

Where does United fly? Use our interactive route map, select your trip type, and our budget filters on United Explore to find the perfect flight.

Check your bags with United in just a few easy steps. Learn more about size and weight limits, and rules that may apply for some common items.

Find the best deals on vacation packages to destinations in Mexico, Caribbean, Hawaii, Central America, and South America with United Vacations.

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

Find United Airlines cheap flights from United States to anywhere. Get United's best fares today for flights departing from United States.