Cheapest return flights from Frankfurt to Seoul in September from $718

Best time to book flights for Frankfurt (FRA) to Seoul (ICN) flights at AirHint

AirHint found the following cheapest return flights from Frankfurt (FRA) to Seoul (ICN) in September 2025 (see full year).

Return flights

13 Sep - 28 Sep MIAT Mongolian Airlines
06 Sep - 21 Sep MIAT Mongolian Airlines
08 Sep - 30 Oct Finnair
09 Sep - 18 Sep MIAT Mongolian Airlines
09 Sep - 16 Sep MIAT Mongolian Airlines
28 Sep - 20 Oct MIAT Mongolian Airlines
20 Sep - 13 Oct MIAT Mongolian Airlines
13 Sep - 19 Sep MIAT Mongolian Airlines
08 Sep - 15 Sep Finnair
23 Sep - 22 Oct China Southern
01 Sep - 15 Sep Finnair
12 Sep - 11 Oct MIAT Mongolian Airlines
16 Sep - 24 Sep MIAT Mongolian Airlines
15 Sep - 21 Sep MIAT Mongolian Airlines
07 Sep - 18 Sep MIAT Mongolian Airlines
29 Sep - 18 Oct MIAT Mongolian Airlines
30 Sep - 21 Oct Finnair
15 Sep - 14 Oct Finnair
21 Sep - 11 Oct MIAT Mongolian Airlines
29 Sep - 11 Oct MIAT Mongolian Airlines

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

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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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