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

Return flights

25 Apr - 02 May	MIAT Mongolian Airlines
06 Apr - 22 Apr	Finnair
07 Apr - 21 Apr	Finnair
13 Apr - 04 May	Finnair
20 Apr - 04 May	Finnair
06 Apr - 20 Apr	Finnair
09 Apr - 16 Apr	Finnair
08 Apr - 22 Apr	Finnair
21 Apr - 14 May	Finnair
29 Apr - 11 May	Finnair
29 Apr - 10 May	Finnair
01 Apr - 16 Apr	Finnair
20 Apr - 01 May	LOT
13 Apr - 24 Apr	Finnair
01 Apr - 19 Apr	Finnair
01 Apr - 08 Apr	MIAT Mongolian Airlines
10 Apr - 24 Apr	Turkish Airlines
10 Apr - 01 May	Turkish Airlines
20 Apr - 02 May	Turkish Airlines
24 Apr - 08 May	Etihad Airways

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 684€

Return flights