AirHint found the following cheapest return flights from Cancun (CUN) to Dublin (DUB) in December 2025 (see full year).

Return flights

06 Dec - 11 Jan	Spirit Airlines
12 Dec - 11 Jan	jetBlue
06 Dec - 13 Jan	Spirit Airlines
03 Dec - 11 Dec	Aeromexico
11 Dec - 12 Jan	jetBlue
05 Dec - 12 Jan	Spirit Airlines
26 Dec - 10 Jan	WestJet
07 Dec - 12 Jan	Spirit Airlines
25 Dec - 07 Jan	WestJet
04 Dec - 12 Dec	Spirit Airlines
25 Dec - 08 Jan	Air France
25 Dec - 09 Jan	WestJet
02 Dec - 09 Dec	Air France
01 Dec - 08 Dec	WORLD2FLY
01 Dec - 07 Dec	WORLD2FLY
02 Dec - 06 Dec	Aeromexico
09 Dec - 16 Dec	KLM
21 Dec - 29 Dec	Delta
21 Dec - 30 Dec	Delta
21 Dec - 28 Dec	Air Canada

Also check the deals for one-way flights from Cancun to Dublin 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.

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Cheapest return flights from Cancun to Dublin in December from 616€

Return flights