Cheapest return flights from Oslo to Keflavik in May from $122

Best time to book flights for Oslo (OSL) to Keflavik (KEF) flights at AirHint

AirHint found the following cheapest return flights from Oslo (OSL) to Keflavik (KEF) in May 2025 (see full year).

Return flights

11 May - 13 May Norwegian direct
11 May - 15 May Norwegian direct
11 May - 18 May Norwegian direct
15 May - 19 May Scandinavian Airlines direct
16 May - 20 May Scandinavian Airlines direct
23 May - 27 May Scandinavian Airlines direct
10 May - 14 May Scandinavian Airlines direct
11 May - 27 May Norwegian direct
15 May - 27 May Norwegian direct
15 May - 20 May Norwegian direct
31 May - 03 Jun Scandinavian Airlines
31 May - 03 Jun Scandinavian Airlines direct
15 May - 03 Jun Norwegian direct
31 May - 01 Jun Scandinavian Airlines
22 May - 03 Jun Norwegian direct
20 May - 03 Jun Norwegian direct
27 May - 03 Jun Norwegian direct
22 May - 10 Jun Norwegian direct
18 May - 03 Jun Norwegian direct
30 May - 03 Jun Ryanair

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

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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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