Cheapest return flights from Keflavik to Helsinki in September from $275

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

Return flights

17 Sep - 24 Sep Wizz Air
09 Sep - 16 Sep Scandinavian Airlines
11 Sep - 18 Sep Lufthansa
15 Sep - 22 Sep Scandinavian Airlines
07 Sep - 11 Sep Scandinavian Airlines
12 Sep - 18 Sep Finnair
26 Sep - 06 Oct Finnair
12 Sep - 19 Sep Finnair
14 Sep - 21 Sep Wizz Air
19 Sep - 24 Sep Scandinavian Airlines
11 Sep - 18 Sep Finnair direct
26 Sep - 06 Oct Icelandair direct

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

Skyscanner

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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