Cheapest return CGN–ICN flights, September

AirHint found the following cheapest return flights from Cologne (CGN) to Seoul (ICN) in September 2026 (see full year).

Return flights

12 Sep - 22 Sep AJet
06 Sep - 16 Sep Ryanair
29 Sep - 10 Oct Wizz Air Malta
09 Sep - 16 Sep Ryanair
11 Sep - 26 Sep Ryanair
07 Sep - 19 Sep Ryanair
28 Sep - 08 Oct Wizz Air Malta
22 Sep - 30 Sep Wizz Air Malta
26 Sep - 11 Oct Wizz Air Malta
21 Sep - 27 Sep Ryanair
14 Sep - 24 Sep Ryanair
12 Sep - 23 Sep Turkish Airlines

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

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