Cheapest return flights from New York to Keflavik in September from 370€

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

Return flights

22 Sep - 29 Sep Air France direct
11 Sep - 15 Sep Air France direct
11 Sep - 19 Sep Air France direct
19 Sep - 23 Sep Air France direct
09 Sep - 16 Sep Air France direct
16 Sep - 23 Sep Delta direct
23 Sep - 30 Sep Air France direct
06 Sep - 14 Sep Air France direct
11 Sep - 20 Sep Delta direct
13 Sep - 23 Sep Delta direct
26 Sep - 01 Oct Icelandair direct
28 Sep - 09 Oct Icelandair direct
27 Sep - 02 Oct Icelandair direct
28 Sep - 03 Oct Icelandair direct
29 Sep - 04 Oct Icelandair direct
30 Sep - 05 Oct Icelandair direct
30 Sep - 07 Oct Icelandair direct
28 Sep - 07 Oct Icelandair direct
24 Sep - 01 Oct Icelandair direct
25 Sep - 02 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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