AirHint found the following cheapest return flights from Frankfurt (FRA) to Seoul (ICN)
in September 2025 (see full year ).
Return flights
02 Sep
- 23 Sep
China Southern
597 €
22 Sep
- 05 Oct
MIAT Mongolian Airlines
608 €
10 Sep
- 18 Oct
MIAT Mongolian Airlines
608 €
13 Sep
- 20 Sep
MIAT Mongolian Airlines
609 €
15 Sep
- 06 Oct
MIAT Mongolian Airlines
632 €
19 Sep
- 30 Sep
China Eastern
637 €
02 Sep
- 15 Sep
China Southern
657 €
17 Sep
- 08 Oct
MIAT Mongolian Airlines
663 €
29 Sep
- 20 Oct
MIAT Mongolian Airlines
663 €
19 Sep
- 13 Oct
MIAT Mongolian Airlines
663 €
19 Sep
- 11 Oct
MIAT Mongolian Airlines
663 €
11 Sep
- 16 Sep
MIAT Mongolian Airlines
674 €
14 Sep
- 21 Sep
MIAT Mongolian Airlines
674 €
18 Sep
- 22 Sep
MIAT Mongolian Airlines
674 €
06 Sep
- 22 Sep
MIAT Mongolian Airlines
674 €
04 Sep
- 19 Sep
MIAT Mongolian Airlines
674 €
11 Sep
- 26 Sep
MIAT Mongolian Airlines
674 €
29 Sep
- 13 Oct
MIAT Mongolian Airlines
674 €
24 Sep
- 15 Oct
MIAT Mongolian Airlines
674 €
29 Sep
- 11 Oct
MIAT Mongolian Airlines
674 €
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.