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

Return flights

05 Dec - 07 Dec	Iberia
07 Dec - 12 Jan	Iberia
09 Dec - 12 Jan	Iberia
24 Dec - 14 Jan	Iberia
29 Dec - 22 Jan	Iberia
24 Dec - 28 Jan	Iberia
29 Dec - 15 Jan	Iberia
09 Dec - 23 Dec	Iberia
06 Dec - 21 Dec	Iberia
05 Dec - 14 Dec	Iberia
29 Dec - 23 Jan	Iberia
23 Dec - 13 Jan	Iberia
23 Dec - 14 Jan	Iberia
23 Dec - 12 Jan	Iberia
06 Dec - 08 Dec	Iberia
11 Dec - 23 Dec	Iberia
11 Dec - 14 Dec	Iberia
01 Dec - 10 Dec	British Airways
10 Dec - 31 Dec	Iberia
06 Dec - 11 Dec	Iberia

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 $727

Return flights