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.

International travel requirements Learn more about necessary travel identification documents and health requirements for your next international flight.

Compare flight offers from Houston (IAH) to destinations worldwide with United and the Star Alliance™ network. Find cheap United direct flights from Houston and enjoy your nonstop …

Search for flights on United and more than 80 airlines. Find adult, senior, child and pet fares, and use money or miles to book. Apply promo codes and use certificates.

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.

Save big with United best flight deals from Los Angeles (LAX). Fly from Los Angeles in premium cabins with great Wi-Fi and in-flight entertainment.

Save big with United best flight deals from Denver (DEN). Fly from Denver in premium cabins with great Wi-Fi and in-flight entertainment.

International travel requirements Every country has its own entry requirements. Find out what documents you’ll need to bring with you.

We can’t accept oversized, overweight, and extra bags on flights to certain destinations and on flights during certain times. Check the list of destinations that don’t allow overweight, …