Cheapest return flights from Oslo to Keflavik in October from $125

Best time to book flights for Oslo (OSL) to Keflavik (KEF) flights at AirHint

AirHint found the following cheapest return flights from Oslo (OSL) to Keflavik (KEF) in October 2025 (see full year).

Return flights

14 Oct - 21 Oct Norwegian direct
09 Oct - 21 Oct Norwegian direct
12 Oct - 21 Oct Norwegian direct
05 Oct - 21 Oct Norwegian direct
02 Oct - 21 Oct Norwegian direct
05 Oct - 09 Oct Norwegian direct
02 Oct - 09 Oct Norwegian direct
19 Oct - 21 Oct Norwegian direct
14 Oct - 16 Oct Norwegian direct
14 Oct - 19 Oct Norwegian direct
31 Oct - 03 Nov Scandinavian Airlines
29 Oct - 01 Nov Icelandair direct
30 Oct - 02 Nov Icelandair direct
31 Oct - 03 Nov Icelandair direct

Also check the deals for one-way flights from Oslo to Keflavik in October.

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