Cheapest return flights from New York to Keflavik in May from $361

Best time to book flights for New York (JFK) to Keflavik (KEF) flights at AirHint

AirHint found the following cheapest return flights from New York (JFK) to Keflavik (KEF) in May 2025 (see full year).

Return flights

26 May - 30 May Icelandair direct
25 May - 30 May Icelandair direct
18 May - 22 May Icelandair direct
25 May - 29 May Icelandair direct
15 May - 22 May Icelandair direct
29 May - 03 Jun Icelandair direct
27 May - 04 Jun Icelandair direct
27 May - 31 May Icelandair direct
15 May - 23 May Icelandair direct
18 May - 28 May Icelandair direct
19 May - 24 May Icelandair direct
17 May - 23 May Icelandair direct
28 May - 05 Jun Icelandair direct
31 May - 05 Jun Icelandair direct
25 May - 02 Jun Air France direct
29 May - 06 Jun KLM
27 May - 07 Jun KLM
27 May - 02 Jun Delta direct
28 May - 03 Jun Air France direct
27 May - 07 Jun Delta direct

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

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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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