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

One-Way flights

13 Aug	Turkish Airlines
18 Aug	Turkish Airlines
07 Aug	Turkish Airlines
01 Aug	Turkish Airlines
02 Aug	Turkish Airlines
18 Aug	Finnair	direct
29 Aug	Qatar Airways
29 Aug	Finnair	direct
02 Aug	Finnair	direct
13 Aug	Finnair	direct

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

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Cheapest one-way flights from Helsinki to Seoul in August from 439€

One-Way flights