Cheapest return flights from Oslo to Keflavik in May from $142

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

13 May - 27 May Norwegian direct
18 May - 27 May Norwegian direct
18 May - 03 Jun Norwegian direct
13 May - 22 May Norwegian direct
06 May - 20 May Norwegian direct
04 May - 20 May Norwegian direct
04 May - 06 May Norwegian direct
18 May - 20 May Norwegian direct
20 May - 27 May Norwegian direct
08 May - 27 May Norwegian direct
20 May - 03 Jun Norwegian direct
13 May - 29 May Norwegian direct
18 May - 05 Jun Norwegian direct
20 May - 05 Jun Norwegian direct
29 May - 17 Jun Norwegian direct
29 May - 05 Jun Norwegian direct
29 May - 10 Jun Norwegian direct
20 May - 08 Jun Norwegian direct
29 May - 08 Jun Norwegian direct
29 May - 15 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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