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	Wizz Air
11 Jan - 18 Jan	Wizz Air
22 Jan - 25 Jan	Wizz Air
09 Jan - 11 Jan	Wizz Air
08 Jan - 18 Jan	Wizz Air
08 Jan - 15 Jan	Wizz Air
09 Jan - 18 Jan	Wizz Air
07 Jan - 11 Jan	easyJet
16 Jan - 21 Jan	Wizz Air Malta
16 Jan - 25 Jan	Wizz Air Malta
29 Jan - 01 Feb	Icelandair	direct
30 Jan - 02 Feb	Icelandair	direct
31 Jan - 03 Feb	Icelandair

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.

Book a cheap hotel in Oslo

Cheap car rent in Oslo

Cheapest return flights from Keflavik to Oslo in January from 133€

Return flights