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

Return flights

01 Dec - 28 Jan	Iberia
03 Dec - 09 Dec	British Airways
03 Dec - 17 Jan	British Airways
01 Dec - 09 Dec	British Airways
02 Dec - 17 Jan	Iberia
03 Dec - 16 Jan	Iberia
07 Dec - 17 Jan	British Airways
06 Dec - 23 Jan	Iberia
04 Dec - 21 Jan	Iberia
06 Dec - 21 Jan	Iberia
02 Dec - 09 Dec	Iberia
03 Dec - 10 Dec	British Airways
01 Dec - 10 Dec	British Airways
06 Dec - 17 Jan	Finnair
05 Dec - 09 Dec	British Airways
06 Dec - 09 Dec	British Airways
31 Dec - 24 Jan	Iberia	direct
01 Dec - 14 Dec	Iberia
02 Dec - 14 Dec	Iberia
02 Dec - 24 Dec	Air Canada

Also check the deals for one-way flights from Mexico City to Madrid 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 Mexico City to Madrid in December from $572

Return flights