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

Return flights

03 Dec - 13 Dec	Turkish Airlines
08 Dec - 26 Dec	Etihad Airways
01 Dec - 26 Dec	Etihad Airways
01 Dec - 10 Dec	Etihad Airways
01 Dec - 08 Dec	Etihad Airways
30 Dec - 14 Jan	Scandinavian Airlines
05 Dec - 13 Dec	Turkish Airlines
26 Dec - 06 Jan	Etihad Airways
24 Dec - 04 Jan	Etihad Airways
27 Dec - 07 Jan	Etihad Airways
25 Dec - 04 Jan	Etihad Airways
16 Dec - 30 Dec	Qatar Airways
28 Dec - 31 Jan	Turkish Airlines
19 Dec - 28 Dec	Etihad Airways
20 Dec - 27 Dec	LOT
24 Dec - 02 Jan	Lufthansa

Also check the deals for one-way flights from Athens to Seoul 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 Seoul in December from $680

Return flights