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

Return flights

26 Aug - 08 Sep	China Southern
22 Aug - 09 Sep	Air China
19 Aug - 16 Sep	Air China
26 Aug - 09 Sep	Air China
29 Aug - 18 Sep	Air China
20 Aug - 31 Aug	Air China
24 Aug - 31 Aug	Air China
20 Aug - 28 Aug	Air China
24 Aug - 01 Sep	Air China
23 Aug - 06 Sep	Air China
22 Aug - 03 Sep	Air China
28 Aug - 18 Sep	Air China
20 Aug - 06 Sep	Air China
13 Aug - 27 Aug	Scandinavian Airlines
21 Aug - 31 Aug	Air China
18 Aug - 28 Aug	Air China
18 Aug - 27 Aug	Scandinavian Airlines
18 Aug - 31 Aug	Air China
23 Aug - 30 Aug	Air China
20 Aug - 30 Aug	Air China

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

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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Cheapest return flights from Frankfurt to Seoul in August from 570€

Return flights