Cheapest return flights from Oslo to Keflavik in May from $165

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

Return flights

12 May - 19 May Norwegian direct
10 May - 19 May Norwegian direct
03 May - 19 May Norwegian direct
01 May - 09 May Scandinavian Airlines direct
02 May - 09 May Scandinavian Airlines direct
15 May - 18 May Scandinavian Airlines direct
19 May - 22 May Scandinavian Airlines direct
11 May - 14 May Scandinavian Airlines direct
08 May - 11 May Scandinavian Airlines direct
06 May - 09 May Scandinavian Airlines direct
31 May - 18 Jun Norwegian direct
29 May - 01 Jun Scandinavian Airlines
30 May - 02 Jun Scandinavian Airlines
31 May - 16 Jun Norwegian direct
28 May - 16 Jun Norwegian direct
31 May - 09 Jun Norwegian direct
31 May - 21 Jun Norwegian direct
26 May - 02 Jun Norwegian direct
26 May - 09 Jun Norwegian direct
19 May - 02 Jun Norwegian direct

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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