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

Return flights

02 Dec - 09 Dec	Lufthansa
25 Dec - 29 Dec	Lufthansa
25 Dec - 30 Dec	Lufthansa
11 Dec - 12 Jan	Lufthansa
10 Dec - 16 Dec	Lufthansa
08 Dec - 15 Dec	Lufthansa
25 Dec - 01 Jan	Lufthansa
22 Dec - 08 Jan	Lufthansa
12 Dec - 15 Dec	Air France
23 Dec - 30 Dec	Lufthansa
01 Dec - 08 Dec	Lufthansa
13 Dec - 20 Dec	Lufthansa
18 Dec - 24 Dec	Lufthansa
29 Dec - 09 Jan	Lufthansa
18 Dec - 03 Jan	Lufthansa
21 Dec - 18 Jan	Lufthansa
31 Dec - 10 Jan	KLM
30 Dec - 05 Jan	KLM
29 Dec - 03 Jan	Lufthansa
29 Dec - 05 Jan	Lufthansa

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 $557

Return flights