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

Return flights

11 Apr - 27 Apr	SWISS
01 Apr - 01 May	MIAT Mongolian Airlines
27 Apr - 08 May	LOT
30 Apr - 15 May	LOT
01 Apr - 22 Apr	Finnair
01 Apr - 15 Apr	Finnair
13 Apr - 26 Apr	Finnair
06 Apr - 20 Apr	Finnair
26 Apr - 10 May	Finnair
01 Apr - 17 Apr	LOT
10 Apr - 01 May	LOT
22 Apr - 30 Apr	Finnair
06 Apr - 14 Apr	Finnair
18 Apr - 09 May	Finnair
25 Apr - 02 May	Finnair
07 Apr - 02 May	Air China
11 Apr - 25 Apr	Finnair
01 Apr - 08 Apr	Lufthansa	direct
17 Apr - 03 May	Air China
26 Apr - 10 May	Korean Air	direct

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 474€

Return flights