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

Return flights

06 Dec - 24 Jan	British Airways
30 Dec - 16 Jan	Iberia
28 Dec - 20 Jan	Iberia
28 Dec - 18 Jan	Iberia
01 Dec - 09 Dec	Iberia
05 Dec - 13 Dec	Iberia
29 Dec - 15 Jan	Iberia
01 Dec - 16 Dec	Iberia
22 Dec - 19 Jan	Air France
28 Dec - 12 Jan	Delta
17 Dec - 08 Jan	Delta
31 Dec - 07 Jan	British Airways
10 Dec - 22 Dec	Iberia
18 Dec - 08 Jan	KLM
15 Dec - 30 Dec	Iberia
12 Dec - 21 Dec	KLM

Also check the deals for one-way flights from Mexico City to Dublin 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.

Book a cheap hotel in Dublin

Cheap car rent in Dublin

Cheapest return flights from Mexico City to Dublin in December from 641€

Return flights