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

Return flights

17 Mar - 24 Mar	Lufthansa
03 Mar - 10 Mar	Lufthansa
02 Mar - 10 Mar	Lufthansa
04 Mar - 10 Mar	Lufthansa
10 Mar - 24 Mar	Lufthansa
13 Mar - 19 Mar	Lufthansa
13 Mar - 16 Mar	Lufthansa
09 Mar - 17 Mar	Lufthansa
09 Mar - 16 Mar	Lufthansa
02 Mar - 09 Mar	Lufthansa
27 Mar - 05 Apr	KLM
28 Mar - 12 Apr	Lufthansa
26 Mar - 04 Apr	China Southern
25 Mar - 04 Apr	China Southern
27 Mar - 06 Apr	China Eastern

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 491€

Return flights