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

Return flights

07 Dec - 12 Dec	Frontier Airlines
03 Dec - 07 Dec	Spirit Airlines
13 Dec - 20 Dec	Delta
06 Dec - 19 Dec	Delta
02 Dec - 09 Dec	Southwest Airlines
10 Dec - 16 Dec	Southwest Airlines
02 Dec - 15 Dec	United
17 Dec - 21 Dec	Breeze Airways
18 Dec - 24 Dec	Frontier Airlines
24 Dec - 31 Dec	Frontier Airlines
29 Dec - 02 Jan	Frontier Airlines
29 Dec - 03 Jan	Frontier Airlines
26 Dec - 03 Jan	Breeze Airways
29 Dec - 02 Jan	Delta	direct
29 Dec - 03 Jan	Delta	direct

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

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.

Book a cheap hotel in Cancun

Cheap car rent in Cancun

Cheapest return flights from Raleigh-durham to Cancun in December from 304€

Return flights