Cheapest return flights from Helsinki to Keflavik in September from $215

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

Return flights

16 Sep - 23 Sep Norwegian Air Sweden AOC
22 Sep - 01 Oct Scandinavian Airlines
04 Sep - 10 Sep Norwegian Air Sweden AOC
27 Sep - 04 Oct Ryanair
27 Sep - 05 Oct Finnair
11 Sep - 14 Sep Norwegian Air Sweden AOC
11 Sep - 15 Sep Norwegian Air Sweden AOC
12 Sep - 16 Sep Norwegian Air Sweden AOC
11 Sep - 20 Sep Norwegian Air Sweden AOC
19 Sep - 21 Sep Scandinavian Airlines
15 Sep - 27 Sep Norwegian Air Sweden AOC
03 Sep - 07 Sep Norwegian Air Sweden AOC
10 Sep - 13 Sep Norwegian Air Sweden AOC
30 Sep - 03 Oct Norwegian Air Sweden AOC
22 Sep - 01 Oct Finnair direct
27 Sep - 04 Oct Finnair direct

Also check the deals for one-way 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

Feel free to contact us with any feedback or request another flight research.