Cheapest return flights from New York to Keflavik in September from $407

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

Return flights

01 Sep - 08 Sep Air Canada
05 Sep - 13 Sep Brussels Airlines direct
01 Sep - 08 Sep Brussels Airlines direct
02 Sep - 13 Sep United
10 Sep - 18 Sep Brussels Airlines direct
01 Sep - 14 Sep Brussels Airlines direct
01 Sep - 15 Sep Brussels Airlines direct
01 Sep - 16 Sep Brussels Airlines direct
02 Sep - 15 Sep Air Canada
29 Sep - 05 Oct Air France direct
22 Sep - 01 Oct Brussels Airlines
25 Sep - 10 Oct Air Canada
25 Sep - 09 Oct Air Canada
05 Sep - 12 Sep Air France
22 Sep - 01 Oct Icelandair direct
25 Sep - 09 Oct Icelandair direct
25 Sep - 10 Oct Icelandair direct

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

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