Cheapest one-way flights from Helsinki to Keflavik in September from 93€

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

23 Sep Norwegian
03 Sep Norwegian
15 Sep Scandinavian Airlines
19 Sep airBaltic
19 Sep Finnair direct
22 Sep Norwegian Air Sweden AOC
23 Sep Finnair direct
22 Sep Finnair direct
03 Sep Finnair direct
15 Sep Finnair direct

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.

Book a cheap hotel in Keflavik

Cheap car rent in Keflavik