Cheapest one-way flights from Keflavik to Helsinki in September from $124

Best time to book flights for Keflavik (KEF) to Helsinki (HEL) flights at AirHint

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

One-Way flights

22 Sep Scandinavian Airlines
06 Sep Scandinavian Airlines
26 Sep Scandinavian Airlines
09 Sep Finnair direct
26 Sep Finnair direct
06 Sep Finnair direct
27 Sep Scandinavian Airlines
22 Sep Finnair direct
27 Sep Finnair direct

Also check the deals for return 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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