AirHint found the following cheapest return flights from Keflavik (KEF) to Oslo (OSL) in January 2026 (see full year).

Return flights

08 Jan - 11 Jan	Scandinavian Airlines
03 Jan - 10 Jan	Scandinavian Airlines
06 Jan - 09 Jan	Icelandair	direct
27 Jan - 30 Jan	Icelandair	direct
13 Jan - 16 Jan	Icelandair	direct
14 Jan - 17 Jan	Icelandair	direct
15 Jan - 18 Jan	Icelandair	direct
16 Jan - 19 Jan	Icelandair	direct
17 Jan - 20 Jan	Icelandair	direct
09 Jan - 12 Jan	Icelandair	direct
30 Jan - 02 Feb	Icelandair	direct
31 Jan - 03 Feb	Icelandair	direct

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

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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Cheapest return flights from Keflavik to Oslo in January from 227€

Return flights