Cheapest one-way flights from Newark to Keflavik in September from $330

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

One-Way flights

14 Sep KLM
10 Sep KLM
15 Sep United direct
30 Sep Delta
14 Sep Icelandair direct
10 Sep Icelandair direct
18 Sep Icelandair direct
04 Sep Icelandair direct
30 Sep Icelandair direct
21 Sep SWISS

Also check the deals for return flights from Newark to Keflavik in September.

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