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

Return flights

06 Mar - 20 Mar	Lufthansa
13 Mar - 20 Mar	Lufthansa
01 Mar - 08 Mar	Lufthansa
02 Mar - 09 Mar	Lufthansa
11 Mar - 16 Mar	Lufthansa
08 Mar - 20 Mar	Lufthansa
01 Mar - 05 Mar	Lufthansa
08 Mar - 24 Mar	Lufthansa
07 Mar - 14 Mar	KLM
21 Mar - 31 Mar	Lufthansa
30 Mar - 08 Apr	Lufthansa
28 Mar - 07 Apr	Lufthansa
03 Mar - 03 Apr	KLM
03 Mar - 03 Apr	Finnair	direct
28 Mar - 05 Apr	KLM
30 Mar - 09 Apr	Asiana Airlines

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

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 March from $581

Return flights