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

Return flights

23 Oct - 08 Nov	easyJet
13 Oct - 28 Oct	Lufthansa
01 Oct - 11 Oct	British Airways
22 Oct - 02 Nov	Aegean Airlines
16 Oct - 07 Nov	easyJet
06 Oct - 13 Oct	Lufthansa
27 Oct - 11 Nov	SWISS
22 Oct - 29 Oct	SWISS
09 Oct - 22 Oct	SWISS
13 Oct - 27 Oct	Lufthansa
16 Oct - 28 Oct	Lufthansa
27 Oct - 10 Nov	Lufthansa
25 Oct - 10 Nov	Lufthansa
25 Oct - 09 Nov	SWISS
23 Oct - 02 Nov	Lufthansa
14 Oct - 27 Oct	Lufthansa
17 Oct - 28 Oct	Lufthansa
23 Oct - 30 Oct	Vueling Airlines

Also check the deals for one-way flights from Athens to Buenos Aires in October.

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 October from $1229

Return flights