Cheapest return flights from Cologne to Seoul in December from $602

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

Return flights

07 Dec - 15 Dec Ryanair
01 Dec - 10 Dec Ryanair
03 Dec - 07 Dec Turkish Airlines
24 Dec - 31 Dec SunExpress
22 Dec - 01 Jan Eurowings
22 Dec - 05 Jan Eurowings
23 Dec - 05 Jan Ryanair
23 Dec - 01 Jan Ryanair
21 Dec - 05 Jan Ryanair
13 Dec - 27 Dec Turkish Airlines
20 Dec - 03 Jan Ryanair

Also check the deals for one-way flights from Cologne to Seoul in December.

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