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

Return flights

02 Dec - 09 Dec	Lufthansa
02 Dec - 21 Jan	United
02 Dec - 28 Jan	United
02 Dec - 13 Jan	United
01 Dec - 08 Dec	Iberia
01 Dec - 12 Jan	Iberia
15 Dec - 12 Jan	Iberia
11 Dec - 16 Jan	Air Canada
03 Dec - 24 Dec	Lufthansa
08 Dec - 24 Dec	Air Canada
11 Dec - 17 Jan	United
12 Dec - 17 Jan	United
16 Dec - 13 Jan	United
25 Dec - 31 Jan	United
05 Dec - 12 Dec	Iberia
08 Dec - 10 Dec	Iberia
08 Dec - 15 Dec	United
06 Dec - 23 Dec	Air Canada
02 Dec - 14 Dec	American Airlines
15 Dec - 30 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.

Book a cheap hotel in Mexico City

Cheap car rent in Mexico City

Cheapest return flights from Barcelona to Mexico City in December from $541

Return flights