Cheapest return flights from New York to Keflavik in September from 350€

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

Return flights

05 Sep - 13 Sep Brussels Airlines direct
02 Sep - 13 Sep United
06 Sep - 16 Sep United direct
01 Sep - 14 Sep Brussels Airlines direct
01 Sep - 15 Sep Brussels Airlines direct
01 Sep - 08 Sep Brussels Airlines direct
01 Sep - 16 Sep Brussels Airlines direct
02 Sep - 07 Sep United
02 Sep - 09 Sep United
04 Sep - 07 Sep United
30 Sep - 09 Oct Delta direct
29 Sep - 05 Oct Air France direct

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

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