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

Return flights

04 Dec - 12 Dec	British Airways
03 Dec - 10 Dec	British Airways
24 Dec - 31 Dec	British Airways
01 Dec - 25 Dec	British Airways
30 Dec - 06 Jan	Aer Lingus
30 Dec - 13 Jan	Aer Lingus
15 Dec - 22 Dec	Iberia
08 Dec - 15 Dec	Aer Lingus
04 Dec - 29 Dec	Ryanair
24 Dec - 29 Dec	British Airways
18 Dec - 08 Jan	Ryanair
13 Dec - 20 Dec	United
28 Dec - 17 Jan	United
28 Dec - 09 Jan	United
17 Dec - 27 Dec	United
28 Dec - 07 Jan	United
28 Dec - 11 Jan	United
29 Dec - 07 Jan	United
27 Dec - 09 Jan	United
27 Dec - 10 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 $629

Return flights