Cheapest return flights from Newark to Keflavik in September from $398

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

Return flights

17 Sep - 24 Sep Icelandair direct
12 Sep - 17 Sep Icelandair direct
13 Sep - 22 Sep Icelandair direct
10 Sep - 15 Sep Icelandair direct
12 Sep - 22 Sep KLM
10 Sep - 16 Sep Virgin Atlantic
05 Sep - 09 Sep KLM
12 Sep - 22 Sep Icelandair direct
13 Sep - 23 Sep Icelandair direct
24 Sep - 01 Oct Icelandair direct
03 Sep - 10 Sep Icelandair direct
27 Sep - 04 Oct Icelandair direct
28 Sep - 04 Oct KLM
29 Sep - 17 Oct Air Canada
06 Sep - 11 Oct Icelandair direct

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

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