Cheapest return flights from Newark to Keflavik in September from $384

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

Return flights

01 Sep - 15 Sep Icelandair direct
16 Sep - 23 Sep Icelandair direct
08 Sep - 15 Sep Icelandair direct
10 Sep - 15 Sep Icelandair direct
21 Sep - 25 Sep Icelandair direct
01 Sep - 06 Sep Icelandair direct
18 Sep - 25 Sep Icelandair direct
11 Sep - 18 Sep United
12 Sep - 19 Sep Air Canada
03 Sep - 12 Sep Air Canada
26 Sep - 03 Oct Air Canada
28 Sep - 09 Oct Air Canada
28 Sep - 04 Oct Icelandair direct
26 Sep - 03 Oct Icelandair direct
28 Sep - 09 Oct Icelandair direct
28 Sep - 10 Oct Icelandair direct
26 Sep - 04 Oct Icelandair direct

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

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