Cheapest return flights from Newark to Keflavik in September from 353€

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

Return flights

03 Sep - 09 Sep United
05 Sep - 12 Sep United
24 Sep - 29 Sep Scandinavian Airlines
03 Sep - 09 Sep Icelandair direct
24 Sep - 29 Sep Icelandair direct
05 Sep - 12 Sep Icelandair direct
24 Sep - 11 Oct Scandinavian Airlines

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

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