AirHint found the following cheapest return flights from Athens (ATH) to Buenos Aires (EZE) in September 2025 (see full year).

Return flights

10 Sep - 24 Sep	Turkish Airlines
10 Sep - 25 Sep	Turkish Airlines
24 Sep - 14 Oct	Delta
04 Sep - 20 Sep	Delta
05 Sep - 20 Sep	Delta
06 Sep - 22 Sep	Turkish Airlines
24 Sep - 12 Oct	Delta
24 Sep - 16 Oct	Delta
10 Sep - 26 Sep	Delta
22 Sep - 06 Oct	Delta
25 Sep - 19 Oct	Delta
25 Sep - 21 Oct	Delta
24 Sep - 13 Oct	Delta
10 Sep - 17 Sep	Delta
16 Sep - 15 Oct	SWISS
24 Sep - 15 Oct	Delta
03 Sep - 17 Sep	Lufthansa
01 Sep - 07 Sep	Turkish Airlines
24 Sep - 20 Oct	Delta
01 Sep - 10 Sep	Turkish Airlines

Also check the deals for one-way flights from Athens to Buenos Aires 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 Athens to Buenos Aires in September from 703€

Return flights