Cheapest return FRA–ICN flights, September

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

Return flights

08 Sep - 15 Sep China Southern
14 Sep - 29 Sep Air India
14 Sep - 12 Oct Ryanair
24 Sep - 11 Oct Air India
15 Sep - 06 Oct Air India
21 Sep - 12 Oct Ryanair
21 Sep - 17 Oct Ryanair
09 Sep - 22 Sep Air India
02 Sep - 15 Sep Air India
01 Sep - 22 Sep Air India
02 Sep - 22 Sep Air India
08 Sep - 22 Sep Air India
01 Sep - 15 Sep Air India
23 Sep - 06 Oct Air India
22 Sep - 06 Oct Air India
22 Sep - 29 Sep Air India
09 Sep - 16 Sep Air India
23 Sep - 14 Oct Air India
21 Sep - 13 Oct Air India
28 Sep - 06 Oct Air India

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

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