Cheapest return flights from New York to Keflavik in September from $402

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

Return flights

08 Sep - 16 Sep United
08 Sep - 15 Sep United
14 Sep - 23 Sep Air France
11 Sep - 19 Sep Air Canada
01 Sep - 17 Sep United
08 Sep - 24 Sep United
05 Sep - 26 Sep Air Canada
09 Sep - 24 Sep United
28 Sep - 03 Oct Air Canada

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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