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

Return flights

03 Apr - 13 Apr	Lufthansa
03 Apr - 09 Apr	Lufthansa
21 Apr - 02 May	Lufthansa
06 Apr - 13 Apr	Lufthansa
30 Apr - 06 May	Lufthansa
06 Apr - 29 Apr	Lufthansa
29 Apr - 05 May	Lufthansa
24 Apr - 02 May	Lufthansa
30 Apr - 11 May	Lufthansa
13 Apr - 24 Apr	Lufthansa
23 Apr - 25 Apr	Etihad Airways
19 Apr - 23 Apr	Lufthansa
30 Apr - 04 May	Lufthansa
18 Apr - 01 May	Scandinavian Airlines
27 Apr - 04 May	Lufthansa
10 Apr - 13 Apr	Air France
03 Apr - 09 Apr	Finnair	direct
13 Apr - 24 Apr	Finnair	direct
21 Apr - 02 May	Finnair	direct
27 Apr - 04 May	Finnair	direct

Also check the deals for one-way flights from Seoul to Helsinki 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 Seoul to Helsinki in April from 563€

Return flights