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

Return flights

15 Jul - 19 Aug	Lufthansa
14 Jul - 20 Aug	Lufthansa
15 Jul - 22 Jul	Lufthansa
08 Jul - 22 Jul	KLM
13 Jul - 23 Jul	KLM
23 Jul - 28 Aug	Air France
01 Jul - 31 Aug	Lufthansa
22 Jul - 30 Jul	Air France
13 Jul - 18 Jul	KLM
17 Jul - 21 Jul	Air France
22 Jul - 29 Jul	Air France
18 Jul - 29 Jul	Air France
17 Jul - 31 Jul	T'way Air
18 Jul - 27 Jul	Air France
18 Jul - 04 Aug	Air France
31 Jul - 24 Aug	Lufthansa
19 Jul - 04 Aug	Air France
21 Jul - 07 Aug	Lufthansa
18 Jul - 05 Aug	Air France
19 Jul - 06 Aug	Air France

Also check the deals for one-way 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 return flights from Seoul to Helsinki in July from $694

Return flights