Cheapest return flights from New York to Keflavik in September from 376€

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

Return flights

06 Sep - 14 Sep KLM
03 Sep - 08 Sep Delta
23 Sep - 30 Sep Air Canada
17 Sep - 20 Sep Delta
06 Sep - 11 Oct Air Canada
02 Sep - 07 Sep Air Canada
11 Sep - 15 Sep Air Canada
11 Sep - 19 Sep Air Canada
01 Sep - 08 Sep United
28 Sep - 07 Oct Air Canada
29 Sep - 17 Oct Air Canada
28 Sep - 09 Oct United
10 Sep - 13 Sep Delta
20 Sep - 26 Sep United

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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