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

Return flights

03 Dec - 07 Dec	ITA Airways
01 Dec - 09 Dec	ITA Airways
06 Dec - 07 Dec	ITA Airways
01 Dec - 11 Dec	Lufthansa
08 Dec - 14 Dec	ITA Airways
02 Dec - 16 Dec	ITA Airways
30 Dec - 17 Jan	easyJet
09 Dec - 31 Dec	ITA Airways
23 Dec - 18 Jan	ITA Airways
09 Dec - 30 Dec	ITA Airways
22 Dec - 19 Jan	ITA Airways
20 Dec - 20 Jan	Aegean Airlines
13 Dec - 09 Jan	Ryanair
25 Dec - 12 Jan	ITA Airways
13 Dec - 10 Jan	Ryanair
14 Dec - 10 Jan	Aegean Airlines
22 Dec - 31 Dec	ITA Airways
23 Dec - 10 Jan	ITA Airways
18 Dec - 28 Dec	Ryanair
22 Dec - 05 Jan	ITA Airways

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

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 December from $1197

Return flights