Cheapest return flights from Keflavik to Oslo in December from $188

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

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

Return flights

08 Dec - 11 Dec Scandinavian Airlines direct
11 Dec - 14 Dec Scandinavian Airlines direct
23 Dec - 03 Jan Lufthansa
23 Dec - 03 Jan Scandinavian Airlines direct
07 Dec - 10 Dec Scandinavian Airlines
12 Dec - 15 Dec Icelandair direct
13 Dec - 16 Dec Icelandair direct
05 Dec - 08 Dec Icelandair direct
09 Dec - 12 Dec Icelandair direct
10 Dec - 13 Dec Icelandair direct
02 Dec - 05 Dec Icelandair direct
06 Dec - 09 Dec Icelandair direct
29 Dec - 01 Jan Scandinavian Airlines
29 Dec - 01 Jan Icelandair direct

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

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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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