$137 Cheap Frontier Airlines flights Raleigh (RDU) to Cancun (CUN)

Set the “Price (lowest to highest)” filter on Expedia to find cheap Frontier Airlines round-trip flights from $311 from RDU to CUN. Affordable one-way fares from $137 are available as well.**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.

Browse for one-way or round-trip flights to Cancun in October or September. You could find an affordable fare with Frontier Airlines during these off-peak months.

Start your search for Frontier Airlines flights from RDU to CUN about one month before you want to leave. The most affordable time to book an international flight is usually 18 to 29 days ahead of your travel date when you can save 17% versus booking four to five months in advance. No matter your itinerary or ticket type, the best day of the week to book international airfare is usually Sunday. Friday can be the most expensive. Passengers booking 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.

To find out if there’s a direct journey from RDU to CUN with Frontier Airlines or another airline, use our “Nonstop” filter when looking for tickets.

Search Frontier Airlines’s earliest flights from RDU to CUN by checking the “Early Morning” and “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.

Frontier Airlines flights from Raleigh - Durham Intl. Airport (RDU) to Cancun come in to Cancun Intl. Airport (CUN). This is the main entry point to this destination.

Journey from RDU to CUN with Frontier Airlines and look forward to a range of perks starting with a rewarding loyalty program. When you book through Expedia as a Frontier Miles and One Key™ member, you may also earn OneKeyCash™* to redeem on select future travel purchases.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

It’s generally possible to change or cancel your flight, although there may be additional charges if your booking was made over 24 hours ago. Prefer to keep your options open? Use our “No cancel fee” and “Changes included” filters to find flights that won’t charge you extra if you need to adjust your plans. To update your booking, head to “Trips,” select your flight and click on “Manage Booking” for further information.