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

Return flights

08 Sep - 16 Sep	Iberia
15 Sep - 29 Sep	Iberia
09 Sep - 16 Sep	Iberia
11 Sep - 16 Sep	Iberia
03 Sep - 16 Sep	Iberia
04 Sep - 16 Sep	Iberia
24 Sep - 07 Oct	Iberia
11 Sep - 09 Oct	Iberia
24 Sep - 09 Oct	Iberia	direct
29 Sep - 13 Oct	Iberia
23 Sep - 13 Oct	Iberia
25 Sep - 20 Oct	Iberia
24 Sep - 30 Oct	Iberia
15 Sep - 29 Sep	Aeromexico	direct
01 Sep - 15 Sep	British Airways
17 Sep - 25 Sep	British Airways
02 Sep - 11 Sep	British Airways
29 Sep - 06 Oct	Iberia
08 Sep - 06 Oct	Iberia
11 Sep - 14 Oct	British Airways

Also check the deals for one-way flights from Madrid to Mexico City 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 Madrid to Mexico City in September from 523€

Return flights