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

Return flights

22 Aug - 30 Aug	Air China
19 Aug - 26 Aug	Air China
21 Aug - 30 Aug	Air China
19 Aug - 28 Aug	Air China
21 Aug - 03 Sep	Air China
27 Aug - 07 Sep	Air China
21 Aug - 18 Sep	Air China
19 Aug - 21 Sep	Air China
21 Aug - 29 Aug	Air China
17 Aug - 10 Sep	Air India
21 Aug - 05 Sep	Etihad Airways
31 Aug - 15 Sep	Air China
25 Aug - 08 Sep	China Eastern
18 Aug - 25 Aug	Etihad Airways
21 Aug - 19 Sep	Etihad Airways
26 Aug - 23 Sep	KLM
22 Aug - 31 Aug	Norwegian Air Sweden AOC
11 Aug - 18 Aug	Air China
17 Aug - 26 Aug	Air China
13 Aug - 21 Aug	Ryanair

Also check the deals for one-way flights from Copenhagen to Seoul in August.

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 August from 510€

Return flights