Cheapest one-way flights from Helsinki to Keflavik in September from $125

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

One-Way flights

17 Sep Norwegian Air Sweden AOC
18 Sep Norwegian Air Sweden AOC
01 Sep Norwegian Air Sweden AOC
09 Sep Norwegian Air Sweden AOC
15 Sep Norwegian Air Sweden AOC
21 Sep Scandinavian Airlines
14 Sep Ryanair
08 Sep Ryanair
13 Sep airBaltic
18 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.

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