Cheapest return flights from New York to Keflavik in December from $379

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 December 2025 (see full year).

Return flights

01 Dec - 05 Dec Icelandair direct
07 Dec - 12 Dec Icelandair direct
10 Dec - 17 Dec Icelandair direct
04 Dec - 11 Dec Icelandair direct
04 Dec - 12 Dec Icelandair direct
07 Dec - 14 Dec Icelandair direct
04 Dec - 07 Dec Icelandair direct
13 Dec - 22 Dec Icelandair direct
14 Dec - 20 Dec Icelandair direct
12 Dec - 21 Dec Icelandair direct
29 Dec - 06 Jan Finnair
22 Dec - 02 Jan Icelandair direct
26 Dec - 02 Jan Icelandair direct
21 Dec - 02 Jan Icelandair direct
28 Dec - 02 Jan Icelandair direct
26 Dec - 08 Jan Icelandair direct
28 Dec - 04 Jan Icelandair direct
29 Dec - 06 Jan Icelandair direct

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

Skyscanner

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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