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

Return flights

09 Sep - 18 Sep	Aeromexico
15 Sep - 26 Sep	Aeromexico
18 Sep - 24 Sep	Viva
10 Sep - 17 Sep	Volaris
09 Sep - 16 Sep	Viva
20 Sep - 11 Oct	Aeromexico
21 Sep - 06 Oct	Aeromexico
16 Sep - 26 Sep	Viva
12 Sep - 19 Sep	Viva
08 Sep - 20 Sep	Viva
07 Sep - 14 Sep	Aeromexico
01 Sep - 12 Sep	Viva
21 Sep - 16 Oct	Air France
22 Sep - 07 Oct	United
16 Sep - 23 Oct	Iberia
17 Sep - 24 Oct	Air France

Also check the deals for one-way flights from Mexico City to Athens 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 Athens in September from 687€

Return flights