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

Return flights

31 Mar - 07 Apr	China Southern
04 Mar - 12 Mar	China Eastern
04 Mar - 11 Mar	Air France
24 Mar - 31 Mar	Air China
11 Mar - 16 Mar	China Eastern
07 Mar - 09 Mar	Lufthansa
03 Mar - 12 Mar	KLM
05 Mar - 12 Mar	KLM
27 Mar - 07 Apr	Air China
04 Mar - 10 Mar	Air France
06 Mar - 20 Mar	China Eastern
20 Mar - 10 Apr	Air France
30 Mar - 09 Apr	Scandinavian Airlines
30 Mar - 05 Apr	Scandinavian Airlines
30 Mar - 07 Apr	Scandinavian Airlines
27 Mar - 10 Apr	Scandinavian Airlines
31 Mar - 06 Apr	KLM
28 Mar - 12 Apr	KLM
30 Mar - 06 Apr	Lufthansa
11 Mar - 28 Mar	Air China

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 479€

Return flights