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

Return flights

09 Jan - 12 Jan	Wizz Air
01 Jan - 05 Jan	Wizz Air
26 Jan - 29 Jan	Icelandair	direct
27 Jan - 30 Jan	Icelandair	direct
25 Jan - 28 Jan	Icelandair	direct
17 Jan - 20 Jan	Icelandair	direct
19 Jan - 22 Jan	Icelandair	direct
20 Jan - 23 Jan	Icelandair	direct
11 Jan - 14 Jan	Icelandair	direct
12 Jan - 15 Jan	Icelandair	direct
29 Jan - 01 Feb	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 169€

Return flights