Cheapest return flights from Oslo to Keflavik in May from $149

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 - 20 May Norwegian direct
11 May - 22 May Norwegian direct
11 May - 29 May Norwegian direct
11 May - 18 May Norwegian direct
15 May - 20 May Norwegian direct
15 May - 03 Jun Norwegian direct
18 May - 23 May Norwegian direct
15 May - 22 May Norwegian direct
15 May - 29 May Norwegian direct
16 May - 22 May Wizz Air
15 May - 18 May Norwegian direct
29 May - 09 Jun LOT
24 May - 08 Jun LOT
29 May - 03 Jun Norwegian direct
24 May - 08 Jun Icelandair direct
29 May - 10 Jun Norwegian direct
31 May - 05 Jun Icelandair direct
29 May - 05 Jun Norwegian direct
29 May - 15 Jun Norwegian direct
29 May - 08 Jun Norwegian direct

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

Skyscanner

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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