Cheapest return flights from Keflavik to Oslo in April from $143

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

Return flights

09 Apr - 28 Apr Norwegian direct
07 Apr - 28 Apr Norwegian direct
30 Apr - 19 May Norwegian direct
30 Apr - 05 May Norwegian direct
14 Apr - 17 Apr Scandinavian Airlines
21 Apr - 24 Apr Scandinavian Airlines
08 Apr - 11 Apr Scandinavian Airlines direct
18 Apr - 21 Apr Scandinavian Airlines direct
26 Apr - 29 Apr Scandinavian Airlines direct
22 Apr - 25 Apr Scandinavian Airlines direct
30 Apr - 14 May Norwegian direct
04 Apr - 07 Apr Scandinavian Airlines direct
01 Apr - 04 Apr Scandinavian Airlines direct

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

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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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