Cheapest return flights from Oslo to Keflavik in December from $172

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

Return flights

14 Dec - 17 Dec Scandinavian Airlines
04 Dec - 11 Dec Scandinavian Airlines direct
16 Dec - 19 Dec Scandinavian Airlines direct
04 Dec - 07 Dec Scandinavian Airlines
17 Dec - 20 Dec Scandinavian Airlines direct
08 Dec - 11 Dec Scandinavian Airlines
01 Dec - 04 Dec Scandinavian Airlines
15 Dec - 18 Dec Scandinavian Airlines
30 Dec - 02 Jan Scandinavian Airlines
07 Dec - 10 Dec Icelandair direct
08 Dec - 11 Dec Icelandair direct
29 Dec - 01 Jan Scandinavian Airlines
26 Dec - 02 Jan Icelandair direct
30 Dec - 02 Jan Icelandair direct
31 Dec - 03 Jan Icelandair direct
29 Dec - 01 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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