Cheapest return flights from Keflavik to Oslo in December from $176

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
04 Dec - 07 Dec Scandinavian Airlines direct
11 Dec - 14 Dec Scandinavian Airlines direct
08 Dec - 11 Dec Scandinavian Airlines
14 Dec - 17 Dec Scandinavian Airlines
05 Dec - 08 Dec Icelandair direct
06 Dec - 09 Dec Icelandair direct
02 Dec - 05 Dec Icelandair direct
08 Dec - 11 Dec Icelandair direct
09 Dec - 12 Dec Icelandair direct
29 Dec - 01 Jan Scandinavian Airlines
30 Dec - 02 Jan Scandinavian Airlines
29 Dec - 01 Jan Icelandair direct
30 Dec - 02 Jan Icelandair direct
31 Dec - 03 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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