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

Return flights

03 Dec - 27 Dec	KLM
04 Dec - 27 Dec	Air France
05 Dec - 29 Dec	Iberia
05 Dec - 27 Dec	Lufthansa
03 Dec - 28 Dec	KLM
03 Dec - 04 Jan	KLM
04 Dec - 28 Dec	Air France
25 Dec - 31 Dec	Vueling Airlines
03 Dec - 03 Jan	Vueling Airlines
24 Dec - 04 Jan	Air Europa
22 Dec - 04 Jan	Vueling Airlines
29 Dec - 09 Jan	Air France
27 Dec - 06 Jan	Vueling Airlines
20 Dec - 28 Dec	KLM
20 Dec - 06 Jan	Air France
20 Dec - 05 Jan	Avianca
20 Dec - 03 Jan	Avianca

Also check the deals for one-way flights from Bilbao 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 Bilbao to Mexico City in December from 709€

Return flights