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

Return flights

25 Sep - 08 Oct	Aeromexico
21 Sep - 06 Oct	Aeromexico
29 Sep - 13 Oct	WestJet
24 Sep - 27 Oct	Aeromexico
10 Sep - 17 Sep	Volaris
21 Sep - 16 Oct	Volaris
30 Sep - 14 Oct	WestJet
05 Sep - 10 Sep	Volaris
30 Sep - 07 Oct	Aeromexico
18 Sep - 23 Sep	Volaris
06 Sep - 11 Sep	Viva
05 Sep - 17 Sep	Volaris
19 Sep - 30 Sep	Volaris
26 Sep - 05 Oct	Volaris
20 Sep - 11 Oct	Aeromexico
17 Sep - 23 Sep	Volaris
18 Sep - 10 Oct	Volaris
12 Sep - 22 Sep	Viva
16 Sep - 26 Sep	Volaris
17 Sep - 26 Sep	Volaris

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 $789

Return flights