Cheapest return flights from Oslo to Keflavik in September from $148

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

Return flights

08 Sep - 22 Sep Norwegian direct
24 Sep - 08 Oct Norwegian direct
08 Sep - 27 Sep Norwegian direct
29 Sep - 08 Oct Norwegian direct
08 Sep - 24 Sep Norwegian direct
24 Sep - 27 Sep Norwegian direct
17 Sep - 22 Sep Norwegian direct
17 Sep - 27 Sep Norwegian direct
24 Sep - 04 Oct Norwegian direct
17 Sep - 24 Sep Norwegian direct
11 Sep - 14 Sep Scandinavian Airlines
04 Sep - 07 Sep Scandinavian Airlines
06 Sep - 09 Sep Scandinavian Airlines direct
29 Sep - 04 Oct Norwegian direct
17 Sep - 04 Oct Norwegian direct
27 Sep - 06 Oct Norwegian direct
25 Sep - 06 Oct Scandinavian Airlines direct
21 Sep - 01 Oct Icelandair direct
30 Sep - 10 Oct Icelandair direct
29 Sep - 09 Oct Norwegian direct

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

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