$162 Cheap United flights Las Vegas (LAS) to Cancun (CUN)

You’ll discover cheap round-trip United Airlines flights from $318 from LAS to CUN by organizing your results from “Price (lowest to highest)” on Expedia. Or search for bargains from $162 for a one-way trip.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

October is one of the most affordable months to fly to Cancun with United Airlines. You could also find great deals on one-way and return fares in September.

Snagging the best United Airlines deals from LAS to CUN often comes down to booking at the right time. You can save 17% on international flights when you book 18 to 29 days before takeoff instead of four to five months ahead. To top it off, you can pocket 17% on average by buying your tickets on a Sunday rather than a Friday, which is often the most expensive day to book.* It’s a good idea to start searching for flights about one month before your departure date.*Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC’s global airline sales database.

Simply enter your dates, click search and select “Nonstop” on Expedia to find any direct flights from LAS to CUN with United Airlines or other carriers.

Find United Airlines’s earliest flights from LAS to CUN by checking the “Morning” and “Early Morning” filters. Not only will you arrive sooner, early departures also have a 20% less chance of being canceled.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.

Cancun Intl. Airport (CUN) is the main Cancun hub for United Airlines flights from Harry Reid Intl. Airport (LAS).

A rewarding loyalty program and the opportunity to collect points through United Mileage Plus are the start of the reasons to travel from LAS to CUN with United Airlines. Plus, when you join Expedia’s free One Key™ program, you can receive OneKeyCash™* alongside United Airlines’s loyalty program earnings. It’s yours to use wherever your next trip takes you.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Changes are often free within 24 hours of booking, but your airline may add a charge after that. For further details about altering your flights, head to your “Trips,” select your flight and click on “Manage Booking.” If you’d like the freedom to adjust your plans without being charged, check the “Changes included” and “No cancel fee” filters when organizing your next break.