Cheapest return flights from Keflavik to Oslo in December from 168€

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

01 Dec - 04 Dec Scandinavian Airlines direct
08 Dec - 11 Dec Scandinavian Airlines
04 Dec - 07 Dec Scandinavian Airlines
02 Dec - 05 Dec Scandinavian Airlines
07 Dec - 10 Dec Icelandair direct
02 Dec - 05 Dec Icelandair direct
03 Dec - 06 Dec Icelandair direct
05 Dec - 08 Dec Icelandair direct
08 Dec - 11 Dec Icelandair direct
06 Dec - 09 Dec 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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