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

Return flights

04 Dec - 11 Dec	Ryanair
06 Dec - 14 Dec	Air Canada
06 Dec - 15 Dec	Air Canada
01 Dec - 10 Dec	Air Canada
03 Dec - 10 Dec	Air Canada
29 Dec - 12 Jan	British Airways
01 Dec - 08 Dec	United
15 Dec - 29 Dec	Iberia
28 Dec - 17 Jan	United
13 Dec - 10 Jan	United
29 Dec - 07 Jan	Delta
31 Dec - 10 Jan	Delta
17 Dec - 30 Dec	United
24 Dec - 31 Dec	United
24 Dec - 30 Dec	United
28 Dec - 11 Jan	United
28 Dec - 07 Jan	United
30 Dec - 10 Jan	United
28 Dec - 06 Jan	United
28 Dec - 08 Jan	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 672€

Return flights