Cheapest return flights from New York to Keflavik in September from 360€

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

Return flights

03 Sep - 21 Sep Air France
24 Sep - 01 Oct Virgin Atlantic
27 Sep - 07 Oct Air Canada
23 Sep - 29 Sep Air Canada
06 Sep - 13 Sep Delta direct
04 Sep - 07 Sep Air France
25 Sep - 10 Oct Air Canada
24 Sep - 01 Oct Icelandair direct
27 Sep - 07 Oct Icelandair direct
28 Sep - 04 Oct Icelandair direct
30 Sep - 15 Oct Icelandair direct
04 Sep - 07 Sep Icelandair direct
23 Sep - 29 Sep Icelandair direct
19 Sep - 27 Sep Icelandair direct
18 Sep - 26 Sep Icelandair direct
20 Sep - 27 Sep Icelandair direct
03 Sep - 21 Sep Icelandair direct
25 Sep - 10 Oct KLM 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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