Cheapest return flights from New York to Keflavik in May from $423

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

Return flights

01 May - 08 May Finnair
03 May - 09 May Lufthansa
18 May - 23 May Icelandair direct
21 May - 25 May Icelandair direct
03 May - 09 May Icelandair direct
06 May - 13 May Icelandair direct
30 May - 13 Jun Icelandair direct
16 May - 23 May Icelandair direct
26 May - 02 Jun Icelandair direct
01 May - 08 May Icelandair direct
02 May - 09 May Icelandair direct
27 May - 03 Jun Icelandair direct
28 May - 04 Jun Icelandair direct
29 May - 05 Jun Icelandair direct
30 May - 06 Jun Icelandair direct
31 May - 07 Jun Icelandair direct
02 May - 10 May Icelandair 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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