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

Return flights

06 Dec - 15 Dec	Ryanair
11 Dec - 15 Dec	Ryanair
06 Dec - 13 Dec	Ryanair
31 Dec - 14 Jan	Aer Lingus
12 Dec - 15 Jan	Air Canada
05 Dec - 15 Dec	British Airways
08 Dec - 16 Dec	British Airways
30 Dec - 07 Jan	British Airways
04 Dec - 07 Dec	British Airways
29 Dec - 17 Jan	British Airways
10 Dec - 16 Dec	Air France
11 Dec - 16 Dec	Ryanair
29 Dec - 08 Jan	British Airways
08 Dec - 27 Dec	KLM
28 Dec - 17 Jan	British Airways
18 Dec - 01 Jan	American Airlines
06 Dec - 20 Dec	Air France
27 Dec - 17 Jan	United
20 Dec - 01 Jan	American Airlines
26 Dec - 15 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 $777

Return flights