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

Return flights

21 Apr - 09 May	Scandinavian Airlines
30 Apr - 09 May	Scandinavian Airlines
07 Apr - 21 Apr	Finnair
20 Apr - 04 May	Finnair
18 Apr - 25 Apr	MIAT Mongolian Airlines
01 Apr - 16 Apr	Finnair
15 Apr - 09 May	Finnair
23 Apr - 15 May	Finnair
23 Apr - 07 May	Finnair
21 Apr - 08 May	KLM
17 Apr - 10 May	Finnair
11 Apr - 03 May	Finnair
06 Apr - 13 Apr	LOT
08 Apr - 29 Apr	Finnair
23 Apr - 30 Apr	Finnair
14 Apr - 24 Apr	Emirates
06 Apr - 12 Apr	Finnair
10 Apr - 10 May	Air China
23 Apr - 30 Apr	Lufthansa	direct
02 Apr - 17 Apr	Air India

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

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 April from 658€

Return flights