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

Return flights

28 Aug - 10 Sep	MIAT Mongolian Airlines
24 Aug - 10 Sep	Air China
18 Aug - 09 Sep	Air China
18 Aug - 08 Sep	Air China
28 Aug - 13 Sep	Air China
30 Aug - 13 Sep	Air China
28 Aug - 17 Sep	Air China
28 Aug - 19 Sep	Air China
25 Aug - 31 Aug	Air China
21 Aug - 02 Sep	Air China
17 Aug - 08 Sep	Finnair
17 Aug - 30 Aug	FlyOne (Romania)
07 Aug - 26 Aug	AJet
21 Aug - 30 Aug	T'way Air
12 Aug - 19 Aug	Korean Air	direct
21 Aug - 30 Aug	T'way Air	direct
04 Aug - 24 Aug	AJet
25 Aug - 31 Aug	Asiana Airlines	direct
08 Aug - 28 Aug	AJet
19 Aug - 26 Aug	China Airlines

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 671€

Return flights