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

Return flights

14 Dec - 13 Jan	American Airlines
12 Dec - 14 Dec	American Airlines
08 Dec - 16 Dec	British Airways
08 Dec - 14 Dec	British Airways
09 Dec - 16 Dec	British Airways
09 Dec - 23 Dec	British Airways
08 Dec - 13 Dec	Iberia
24 Dec - 31 Dec	British Airways
09 Dec - 13 Dec	British Airways
12 Dec - 09 Jan	Ryanair
31 Dec - 15 Jan	British Airways
23 Dec - 30 Dec	Ryanair
12 Dec - 15 Jan	Air France
12 Dec - 19 Dec	Air France
23 Dec - 06 Jan	Ryanair
30 Dec - 13 Jan	Ryanair
31 Dec - 09 Jan	British Airways
14 Dec - 12 Jan	Air Canada
23 Dec - 01 Jan	Ryanair
26 Dec - 11 Jan	Lufthansa

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 650€

Return flights