AirHint found the following cheapest one-way flights from Keflavik (KEF) to Oslo (OSL) in March 2026 (see full year).

One-Way flights

31 Mar	Scandinavian Airlines	direct
26 Mar	Scandinavian Airlines	direct
19 Mar	Scandinavian Airlines	direct
12 Mar	Scandinavian Airlines	direct
02 Mar	Scandinavian Airlines	direct
24 Mar	Scandinavian Airlines	direct
27 Mar	Scandinavian Airlines	direct
04 Mar	easyJet
01 Mar	Scandinavian Airlines	direct
08 Mar	Scandinavian Airlines	direct

Also check the deals for return flights from Keflavik to Oslo in March.

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 one-way flights from Keflavik to Oslo in March from 71€

One-Way flights