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

Return flights

22 Sep - 30 Sep	Volaris
08 Sep - 19 Sep	Viva
28 Sep - 04 Oct	Viva
15 Sep - 24 Sep	Volaris
28 Sep - 14 Oct	Volaris
22 Sep - 26 Sep	Finnair
06 Sep - 18 Sep	Finnair
06 Sep - 13 Sep	Finnair
24 Sep - 03 Oct	Finnair
16 Sep - 26 Sep	Viva
15 Sep - 08 Oct	Finnair
24 Sep - 02 Oct	Finnair
20 Sep - 07 Oct	Finnair
27 Sep - 04 Oct	Finnair
14 Sep - 30 Sep	Volaris
06 Sep - 19 Sep	Finnair
15 Sep - 24 Sep	Iberia	direct
06 Sep - 03 Oct	Finnair
29 Sep - 04 Oct	Finnair
17 Sep - 03 Oct	Iberia	direct

Also check the deals for one-way flights from Mexico City to Madrid in September.

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 September from 514€

Return flights