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

Return flights

23 Oct - 05 Nov	China Eastern
20 Oct - 31 Oct	China Eastern
23 Oct - 07 Nov	China Eastern
28 Oct - 07 Nov	easyJet
31 Oct - 07 Nov	Norwegian Air Sweden AOC
05 Oct - 16 Oct	Air India
29 Oct - 08 Nov	Air India
20 Oct - 26 Oct	Scandinavian Airlines
30 Oct - 09 Nov	China Eastern
01 Oct - 07 Oct	Air France
01 Oct - 09 Oct	Air France
01 Oct - 10 Oct	Air France
01 Oct - 12 Oct	Air India
21 Oct - 25 Oct	Wizz Air
02 Oct - 13 Oct	Air China
02 Oct - 15 Oct	Air China
30 Oct - 14 Nov	China Eastern
25 Oct - 02 Nov	China Eastern
30 Oct - 08 Nov	KLM
21 Oct - 03 Nov	Air China

Also check the deals for one-way flights from Copenhagen to Seoul 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 Copenhagen to Seoul in October from 491€

Return flights