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

Return flights

17 Dec - 17 Jan	Lufthansa
02 Dec - 09 Dec	Lufthansa
02 Dec - 08 Dec	Air France
03 Dec - 11 Dec	Air France
07 Dec - 15 Dec	Air China
08 Dec - 15 Dec	Air France
05 Dec - 12 Dec	Air France
06 Dec - 11 Dec	Air France
21 Dec - 31 Jan	Lufthansa
01 Dec - 07 Dec	Air France
09 Dec - 13 Dec	Air France
18 Dec - 25 Dec	Ethiopian Airlines
29 Dec - 09 Jan	Lufthansa
25 Dec - 01 Jan	Ethiopian Airlines
26 Dec - 01 Jan	Air France
25 Dec - 06 Jan	Lufthansa
31 Dec - 20 Jan	Scandinavian Airlines
23 Dec - 06 Jan	Ethiopian Airlines
29 Dec - 06 Jan	KLM
31 Dec - 21 Jan	KLM

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 477€

Return flights