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

Return flights

13 Oct - 14 Nov	Lufthansa
13 Oct - 21 Oct	SWISS
20 Oct - 31 Oct	China Eastern
30 Oct - 06 Nov	Ethiopian Airlines
21 Oct - 29 Oct	LOT
20 Oct - 29 Oct	LOT
15 Oct - 22 Oct	LOT
23 Oct - 29 Oct	LOT
13 Oct - 22 Oct	LOT
24 Oct - 29 Oct	Air China
15 Oct - 21 Oct	SWISS
23 Oct - 31 Oct	Air China
24 Oct - 01 Nov	Ethiopian Airlines
08 Oct - 07 Nov	Malaysia Airlines
27 Oct - 05 Nov	LOT
27 Oct - 03 Nov	LOT
09 Oct - 07 Nov	Air France
09 Oct - 08 Nov	Lufthansa
25 Oct - 03 Nov	Etihad Airways
26 Oct - 02 Nov	Etihad Airways

Also check the deals for one-way flights from Seoul to Athens in October.

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 October from $552

Return flights