Cheapest return flights from New York to Keflavik in September from $418

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

Return flights

07 Sep - 17 Sep Air France
04 Sep - 11 Sep Air Canada
04 Sep - 12 Sep Air Canada
03 Sep - 08 Sep Air Canada
10 Sep - 15 Sep Air Canada
10 Sep - 14 Sep Air Canada
25 Sep - 03 Oct Air Canada
01 Sep - 15 Sep Finnair
25 Sep - 04 Oct Icelandair direct
01 Sep - 15 Sep Icelandair direct
10 Sep - 15 Sep Icelandair direct
25 Sep - 03 Oct Icelandair direct
18 Sep - 23 Sep Icelandair direct
28 Sep - 08 Oct Icelandair direct

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

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