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

Return flights

06 May - 13 May	Lufthansa
13 May - 17 May	Lufthansa
09 May - 15 May	Etihad Airways
08 May - 11 May	Lufthansa
01 May - 05 May	Lufthansa
29 May - 07 Jun	Lufthansa
22 May - 06 Jun	Etihad Airways
20 May - 19 Jun	Lufthansa
27 May - 29 May	Etihad Airways
11 May - 22 May	Lufthansa
06 May - 13 May	Finnair	direct
13 May - 17 May	Finnair	direct
08 May - 11 May	Finnair	direct
22 May - 06 Jun	Finnair	direct
20 May - 19 Jun	Finnair	direct

Also check the deals for one-way flights from Seoul to Helsinki in May.

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 May from 629€

Return flights