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

Return flights

06 Dec - 22 Jan	Iberia
06 Dec - 28 Jan	Iberia
07 Dec - 15 Jan	Iberia
06 Dec - 14 Dec	Iberia
06 Dec - 17 Jan	Iberia
06 Dec - 14 Jan	Iberia
06 Dec - 11 Dec	Iberia
06 Dec - 08 Dec	Iberia
05 Dec - 18 Jan	Iberia
24 Dec - 26 Jan	Iberia
08 Dec - 31 Jan	Iberia
06 Dec - 25 Dec	Iberia
29 Dec - 31 Jan	Iberia	direct
06 Dec - 30 Dec	Iberia
07 Dec - 30 Dec	Iberia
31 Dec - 31 Jan	Iberia	direct
07 Dec - 13 Dec	Iberia
07 Dec - 31 Dec	Iberia
03 Dec - 09 Dec	Iberia
05 Dec - 08 Dec	Iberia

Also check the deals for one-way flights from Madrid 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 Madrid to Mexico City in December from 517€

Return flights