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

Return flights

23 Oct - 26 Oct	Lufthansa
21 Oct - 26 Oct	Lufthansa
13 Oct - 18 Oct	Air China
19 Oct - 26 Oct	Air China
13 Oct - 17 Oct	Air China
20 Oct - 27 Oct	Air China
31 Oct - 09 Nov	Air China
18 Oct - 23 Oct	Air China
13 Oct - 20 Oct	Air China
29 Oct - 05 Nov	Finnair
22 Oct - 28 Oct	Finnair
15 Oct - 20 Oct	Finnair
26 Oct - 01 Nov	Air China
25 Oct - 01 Nov	Air China
27 Oct - 02 Nov	LOT

Also check the deals for one-way flights from Seoul to Copenhagen 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 Copenhagen in October from $637

Return flights