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

One-Way flights

02 Apr	Scandinavian Airlines	direct
14 Apr	Norwegian	direct
04 Apr	Scandinavian Airlines	direct
15 Apr	Scandinavian Airlines	direct
18 Apr	Scandinavian Airlines	direct
12 Apr	Norwegian	direct
17 Apr	Scandinavian Airlines	direct
23 Apr	Scandinavian Airlines	direct
24 Apr	Scandinavian Airlines	direct
25 Apr	Scandinavian Airlines	direct

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

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 April from 71€

One-Way flights