Cheapest return flights from Seoul to Helsinki in September from $766

Best time to book flights for Seoul (ICN) to Helsinki (HEL) flights at AirHint

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

Return flights

16 Sep - 23 Sep Air France
08 Sep - 16 Sep KLM
04 Sep - 11 Sep Etihad Airways
12 Sep - 21 Sep Lufthansa
16 Sep - 23 Sep Finnair direct
16 Sep - 21 Sep Finnair direct
15 Sep - 29 Sep Finnair direct
10 Sep - 22 Oct Qatar Airways
11 Sep - 19 Sep Qatar Airways
14 Sep - 19 Sep KLM
22 Sep - 26 Sep KLM
24 Sep - 02 Oct Singapore Airlines
10 Sep - 22 Oct Finnair direct
01 Sep - 31 Oct Qatar Airways
01 Sep - 31 Oct Finnair direct
29 Sep - 31 Oct Singapore Airlines
24 Sep - 02 Oct Finnair direct
25 Sep - 02 Oct Lufthansa
26 Sep - 06 Oct Singapore Airlines
30 Sep - 31 Oct Singapore Airlines

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

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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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