Cheapest return flights from Oslo to Keflavik in December from $154

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

Return flights

01 Dec - 04 Dec Scandinavian Airlines direct
07 Dec - 11 Dec Scandinavian Airlines direct
04 Dec - 11 Dec Scandinavian Airlines direct
07 Dec - 09 Dec Scandinavian Airlines
07 Dec - 14 Dec Scandinavian Airlines direct
11 Dec - 14 Dec Scandinavian Airlines direct
02 Dec - 05 Dec Icelandair direct
03 Dec - 06 Dec Icelandair direct
04 Dec - 07 Dec Icelandair direct
05 Dec - 08 Dec Icelandair direct
27 Dec - 06 Jan Scandinavian Airlines
20 Dec - 04 Jan Ryanair
28 Dec - 01 Jan KLM
26 Dec - 03 Jan Ryanair
27 Dec - 01 Jan Scandinavian Airlines
28 Dec - 02 Jan KLM
29 Dec - 01 Jan Scandinavian Airlines
28 Dec - 02 Jan Scandinavian Airlines direct
29 Dec - 01 Jan Icelandair direct
27 Dec - 06 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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