$123 Cheap American Airlines flights Las Vegas (LAS) to Cancun (CUN)

Grab cheap round-trip American Airlines flights from $267 from LAS to CUN by organizing your results from “Price (lowest to highest)” on Expedia. Or look for deals from $123 for a one-way journey.**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 least expensive months to get away to Cancun with American Airlines. You could also find great prices on return and one-way fares in September.

Search for American Airlines flights from LAS to CUN about one month before you want to leave. The cheapest time to reserve an international flight is generally 18 to 29 days ahead of your travel date when you can save 17% versus booking four to five months in advance. Regardless of fare class or itinerary, the best day of the week to book international airfare is usually Sunday. Friday is often the most expensive. Travelers who book on a Sunday can save 17% on average compared to those who book on a Friday.**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.

Fill in your dates, press search and use the “Nonstop” filter on Expedia to browse any direct flights from LAS to CUN with American Airlines or other carriers.

To find the earliest departures from LAS to CUN with American Airlines, filter your search by “Early Morning” and “Morning.” Booking an early flight usually means you’ll experience fewer cancellations.**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 primary Cancun gateway for American Airlines flights from Harry Reid Intl. Airport (LAS).

Depending on the ticket type you purchased, a fee typically applies if you cancel or reschedule your flight more than 24 hours after it’s confirmed. To secure flexible plane tickets, select our “Changes included” and “No cancel fee” boxes when you search for flights. For additional information on canceling or changing your reservation, head to “Trips,” select your flight and click on “Manage Booking.”