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

Return flights

16 Dec - 24 Dec	Air China
09 Dec - 15 Dec	Air China
02 Dec - 08 Dec	Air China
02 Dec - 10 Dec	Air China
09 Dec - 17 Dec	Air China
02 Dec - 05 Dec	Air China
16 Dec - 26 Dec	Air China
02 Dec - 15 Dec	Air China
09 Dec - 12 Dec	Air China
23 Dec - 26 Dec	Air China
21 Dec - 05 Jan	Air China
28 Dec - 05 Jan	Air China
25 Dec - 05 Jan	Air China
23 Dec - 02 Jan	Air China
28 Dec - 02 Jan	Air China
30 Dec - 15 Jan	Etihad Airways
12 Dec - 08 Jan	Lufthansa
29 Dec - 06 Jan	Ethiopian Airlines
25 Dec - 06 Jan	Ethiopian Airlines
30 Dec - 06 Jan	Ethiopian Airlines

Also check the deals for one-way flights from Seoul to Athens 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 Seoul to Athens in December from $448

Return flights