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

Return flights

01 Dec - 25 Jan	Air Canada
02 Dec - 09 Dec	Lufthansa
04 Dec - 08 Dec	Air Canada
03 Dec - 08 Dec	Lufthansa
01 Dec - 07 Dec	Air Canada
01 Dec - 08 Dec	Air Canada
07 Dec - 24 Jan	United
08 Dec - 24 Jan	United
02 Dec - 13 Jan	United
06 Dec - 24 Jan	United
10 Dec - 24 Jan	Air Canada
29 Dec - 16 Jan	Air Canada
24 Dec - 16 Jan	Air Canada
29 Dec - 18 Jan	Air Canada
24 Dec - 12 Jan	Air Canada
04 Dec - 16 Dec	Air Canada
04 Dec - 12 Dec	Air Canada
08 Dec - 12 Dec	Iberia
04 Dec - 11 Dec	United
02 Dec - 15 Dec	United

Also check the deals for one-way flights from Barcelona 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 Barcelona to Mexico City in December from 447€

Return flights