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

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

Return flights

01 Sep - 15 Sep Icelandair direct
16 Sep - 23 Sep Icelandair direct
01 Sep - 05 Sep Icelandair direct
09 Sep - 16 Sep Icelandair direct
13 Sep - 22 Sep Icelandair direct
11 Sep - 25 Sep Icelandair direct
13 Sep - 23 Sep Delta direct
16 Sep - 28 Sep Air France direct
06 Sep - 13 Sep Air France direct
13 Sep - 20 Sep Delta direct
28 Sep - 09 Oct Icelandair direct
27 Sep - 04 Oct Icelandair direct
06 Sep - 11 Oct Icelandair direct

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

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The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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