Cheapest return flights from Seoul to Frankfurt in September from $586

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

Return flights

05 Sep - 19 Sep MIAT Mongolian Airlines
23 Sep - 04 Oct MIAT Mongolian Airlines
27 Sep - 04 Oct MIAT Mongolian Airlines
07 Sep - 18 Sep Air China
12 Sep - 18 Sep Air China
01 Sep - 24 Sep Etihad Airways
05 Sep - 10 Sep T'way Air direct
03 Sep - 09 Sep T'way Air direct
02 Sep - 10 Sep T'way Air direct
03 Sep - 10 Sep T'way Air direct
02 Sep - 02 Oct Air China
15 Sep - 29 Sep Etihad Airways
15 Sep - 24 Sep Etihad Airways
01 Sep - 25 Oct Etihad Airways
01 Sep - 27 Oct Etihad Airways
25 Sep - 09 Oct MIAT Mongolian Airlines
25 Sep - 04 Oct MIAT Mongolian Airlines
17 Sep - 03 Oct Air China
05 Sep - 15 Oct Air China
30 Sep - 29 Oct China Airlines

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

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