Cheapest return flights from New York to Keflavik in May from $420

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

Return flights

09 May - 17 May KLM
07 May - 14 May KLM
11 May - 18 May KLM
12 May - 19 May Air France
11 May - 22 May KLM
11 May - 15 May KLM
09 May - 14 May KLM
19 May - 25 May KLM
16 May - 23 May KLM
20 May - 27 May KLM
26 May - 02 Jun Air France
27 May - 03 Jun KLM
28 May - 04 Jun Air France
29 May - 05 Jun Air France
31 May - 07 Jun Air France

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

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