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

Return flights

16 Dec - 26 Dec	Air China
11 Dec - 17 Dec	Air China
28 Dec - 31 Dec	Etihad Airways
08 Dec - 16 Dec	Etihad Airways
17 Dec - 27 Dec	Etihad Airways
09 Dec - 16 Dec	Etihad Airways
03 Dec - 07 Dec	Etihad Airways
09 Dec - 12 Dec	Air China
16 Dec - 22 Dec	Air China
23 Dec - 02 Jan	Air China
14 Dec - 26 Dec	Air China
17 Dec - 09 Jan	China Eastern
25 Dec - 02 Jan	Air China
30 Dec - 06 Jan	Ethiopian Airlines
29 Dec - 10 Jan	Ethiopian Airlines
25 Dec - 06 Jan	Ethiopian Airlines
23 Dec - 01 Jan	China Eastern
28 Dec - 02 Jan	Air China
22 Dec - 07 Jan	LOT
28 Dec - 08 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 386€

Return flights