AirHint found the following cheapest one-way flights from Seoul (ICN) to Helsinki (HEL) in August 2026 (see full year).

One-Way flights

06 Aug	Etihad Airways
25 Aug	Lufthansa
01 Aug	KLM
18 Aug	Singapore Airlines
27 Aug	Singapore Airlines
18 Aug	Finnair	direct
25 Aug	Finnair	direct
27 Aug	Finnair	direct
01 Aug	Finnair	direct
06 Aug	Finnair	direct

Also check the deals for return flights from Seoul to Helsinki in August.

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.

Book a cheap hotel in Helsinki

Cheap car rent in Helsinki

Cheapest one-way flights from Seoul to Helsinki in August from $558

One-Way flights