Cheapest return flights from Oslo to Keflavik in December from $237

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 December 2025 (see full year).

Return flights

10 Dec - 17 Dec Ryanair
02 Dec - 05 Dec Icelandair direct
04 Dec - 07 Dec Icelandair direct
07 Dec - 10 Dec Icelandair direct
01 Dec - 04 Dec Icelandair direct
05 Dec - 08 Dec Icelandair direct
06 Dec - 09 Dec Icelandair direct
03 Dec - 06 Dec Icelandair direct
10 Dec - 17 Dec Icelandair direct
29 Dec - 02 Jan Scandinavian Airlines
26 Dec - 02 Jan Icelandair direct
29 Dec - 02 Jan Icelandair direct
21 Dec - 03 Jan Icelandair direct
27 Dec - 03 Jan Lufthansa
30 Dec - 03 Jan Scandinavian Airlines
30 Dec - 03 Jan Icelandair direct
27 Dec - 03 Jan Icelandair direct

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