Cheapest one-way flights from Helsinki to Keflavik in September from $117

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

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

One-Way flights

12 Sep Scandinavian Airlines
11 Sep Scandinavian Airlines
17 Sep Scandinavian Airlines
14 Sep airBaltic
12 Sep Finnair direct
17 Sep Finnair direct
11 Sep Finnair direct
27 Sep Finnair direct
14 Sep Finnair direct
13 Sep Scandinavian Airlines

Also check the deals for return flights from Helsinki to Keflavik 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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