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

Return flights

06 Dec - 13 Dec	Air Canada
29 Dec - 17 Jan	Delta
03 Dec - 07 Dec	British Airways
29 Dec - 18 Jan	Delta
29 Dec - 08 Jan	Delta
01 Dec - 11 Dec	Air Canada
30 Dec - 09 Jan	British Airways
30 Dec - 07 Jan	British Airways
31 Dec - 09 Jan	British Airways
30 Dec - 10 Jan	British Airways
10 Dec - 17 Dec	KLM
05 Dec - 07 Dec	British Airways
29 Dec - 10 Jan	British Airways
14 Dec - 08 Jan	British Airways
08 Dec - 26 Dec	KLM
01 Dec - 30 Dec	Aer Lingus
15 Dec - 22 Dec	British Airways
14 Dec - 28 Dec	British Airways
13 Dec - 20 Dec	British Airways
24 Dec - 10 Jan	British Airways

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 699€

Return flights