AirHint found the following cheapest return flights from Frankfurt (FRA) to Seoul (ICN)
in September 2025 (see full year ).
Return flights
17 Sep
- 24 Sep
MIAT Mongolian Airlines
620 €
15 Sep
- 22 Sep
MIAT Mongolian Airlines
636 €
02 Sep
- 22 Sep
MIAT Mongolian Airlines
642 €
04 Sep
- 26 Sep
MIAT Mongolian Airlines
644 €
17 Sep
- 27 Sep
MIAT Mongolian Airlines
673 €
24 Sep
- 22 Oct
MIAT Mongolian Airlines
677 €
29 Sep
- 20 Oct
MIAT Mongolian Airlines
677 €
28 Sep
- 15 Oct
MIAT Mongolian Airlines
678 €
01 Sep
- 16 Sep
Finnair
679 €
09 Sep
- 18 Sep
MIAT Mongolian Airlines
679 €
02 Sep
- 09 Sep
Finnair
679 €
29 Sep
- 13 Oct
MIAT Mongolian Airlines
679 €
23 Sep
- 22 Oct
China Southern
680 €
16 Sep
- 15 Oct
China Southern
680 €
16 Sep
- 08 Oct
Finnair
683 €
07 Sep
- 19 Sep
MIAT Mongolian Airlines
687 €
01 Sep
- 15 Sep
Finnair
687 €
26 Sep
- 18 Oct
MIAT Mongolian Airlines
687 €
15 Sep
- 11 Oct
MIAT Mongolian Airlines
687 €
17 Sep
- 08 Oct
MIAT Mongolian Airlines
688 €
Also check the deals for one-way flights from Frankfurt to Seoul in September .
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.