AirHint found the following cheapest one-way flights from Seoul (ICN) to Helsinki (HEL) in July 2025 (see full year).

One-Way flights

06 Jul	T'way Air
10 Jul	T'way Air
07 Jul	T'way Air
15 Jul	T'way Air
09 Jul	T'way Air
08 Jul	T'way Air
17 Jul	MIAT Mongolian Airlines
13 Jul	MIAT Mongolian Airlines
22 Jul	T'way Air
05 Jul	China Eastern

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

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 Seoul to Helsinki in July from 339€

One-Way flights