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

Return flights

10 Dec - 14 Dec	Lufthansa
04 Dec - 09 Dec	Lufthansa
02 Dec - 09 Dec	Lufthansa
05 Dec - 09 Dec	Air France
05 Dec - 11 Dec	Lufthansa
01 Dec - 08 Dec	Air France
25 Dec - 01 Jan	Lufthansa
25 Dec - 29 Dec	Lufthansa
11 Dec - 18 Dec	Lufthansa
22 Dec - 29 Dec	Lufthansa
29 Dec - 06 Jan	Lufthansa
06 Dec - 11 Dec	KLM
29 Dec - 04 Jan	Scandinavian Airlines
27 Dec - 01 Jan	Emirates
28 Dec - 02 Jan	Lufthansa
24 Dec - 02 Jan	Emirates
27 Dec - 03 Jan	Qatar Airways
24 Dec - 01 Jan	Air France
27 Dec - 02 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 472€

Return flights