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

Return flights

24 Oct - 04 Nov	Lufthansa
16 Oct - 26 Oct	Lufthansa
22 Oct - 28 Oct	Lufthansa
14 Oct - 28 Oct	Lufthansa
21 Oct - 28 Oct	Lufthansa
20 Oct - 28 Nov	Lufthansa
27 Oct - 10 Nov	Lufthansa
27 Oct - 06 Nov	Lufthansa
13 Oct - 27 Oct	Lufthansa
27 Oct - 03 Nov	Lufthansa
10 Oct - 22 Oct	Lufthansa
13 Oct - 23 Oct	Air France
08 Oct - 21 Oct	Lufthansa
13 Oct - 19 Oct	Scandinavian Airlines
16 Oct - 23 Oct	Lufthansa
25 Oct - 01 Nov	Lufthansa
20 Oct - 28 Nov	Finnair	direct
27 Oct - 06 Nov	Finnair	direct
27 Oct - 03 Nov	Finnair	direct
24 Oct - 04 Nov	Finnair	direct

Also check the deals for one-way flights from Seoul to Helsinki in October.

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 return flights from Seoul to Helsinki in October from $578

Return flights