AirHint found the following cheapest return flights from Raleigh-durham (RDU) to Cancun (CUN) in August 2025 (see full year).

Return flights

09 Aug - 21 Aug	Frontier Airlines
02 Aug - 05 Aug	Frontier Airlines
17 Aug - 20 Aug	United
04 Aug - 07 Aug	Frontier Airlines
22 Aug - 26 Aug	Spirit Airlines
03 Aug - 07 Aug	Spirit Airlines
09 Aug - 13 Aug	Frontier Airlines
22 Aug - 25 Aug	Spirit Airlines
09 Aug - 15 Aug	Frontier Airlines
29 Aug - 02 Sep	Spirit Airlines
18 Aug - 23 Aug	Frontier Airlines
23 Aug - 01 Sep	Frontier Airlines
29 Aug - 01 Sep	Spirit Airlines

Also check the deals for one-way flights from Raleigh-durham to Cancun in August.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from Raleigh-durham to Cancun in August from 267€

Return flights