Cheapest return flights from Newark to Keflavik in September from 348€

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

Return flights

24 Sep - 01 Oct Air Canada
30 Sep - 06 Oct Air Canada
03 Sep - 21 Sep United
30 Sep - 15 Oct United
18 Sep - 26 Sep Air Canada
04 Sep - 07 Sep United
18 Sep - 27 Sep Air Canada
20 Sep - 27 Sep Air Canada
24 Sep - 01 Oct Icelandair direct
28 Sep - 04 Oct Icelandair direct
30 Sep - 15 Oct Icelandair direct
04 Sep - 07 Sep Icelandair direct
19 Sep - 27 Sep Icelandair direct
18 Sep - 27 Sep Icelandair direct
18 Sep - 26 Sep Icelandair direct
20 Sep - 27 Sep Icelandair direct
25 Sep - 10 Oct Lufthansa
27 Sep - 07 Oct British Airways

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

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