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

Return flights

03 Dec - 10 Dec	Lufthansa
29 Dec - 14 Jan	Iberia
15 Dec - 30 Dec	Turkish Airlines
11 Dec - 15 Dec	Turkish Airlines
29 Dec - 16 Jan	Iberia
28 Dec - 13 Jan	Iberia
28 Dec - 14 Jan	Iberia
06 Dec - 08 Dec	Lufthansa
09 Dec - 29 Dec	Turkish Airlines
28 Dec - 12 Jan	Turkish Airlines
29 Dec - 11 Jan	Ryanair
28 Dec - 11 Jan	Ryanair
29 Dec - 13 Jan	Iberia
29 Dec - 15 Jan	Iberia
29 Dec - 10 Jan	Ryanair
28 Dec - 30 Dec	Volotea
10 Dec - 17 Dec	Turkish Airlines
23 Dec - 24 Dec	Azores Airlines

Also check the deals for one-way flights from Porto to Mexico City 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 Porto to Mexico City in December from 667€

Return flights