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

Return flights

03 Dec - 10 Dec	Lufthansa
01 Dec - 07 Dec	Aer Lingus
12 Dec - 16 Jan	Lufthansa
05 Dec - 13 Dec	Air Canada
01 Dec - 31 Dec	United
30 Dec - 10 Jan	United
16 Dec - 10 Jan	United
13 Dec - 09 Jan	United
30 Dec - 06 Jan	Aer Lingus
09 Dec - 13 Jan	Delta
12 Dec - 09 Jan	United
10 Dec - 09 Jan	United
13 Dec - 10 Jan	United
13 Dec - 08 Jan	United
15 Dec - 29 Dec	SWISS
24 Dec - 31 Dec	United
27 Dec - 30 Dec	United
24 Dec - 30 Dec	United
18 Dec - 26 Dec	United
18 Dec - 28 Dec	United

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

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Cheapest return flights from Dublin to Cancun in December from 677€

Return flights