Cheapest return flights from New York to Keflavik in December from $260

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

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

Return flights

01 Dec - 06 Dec Fly Play direct
06 Dec - 22 Dec Fly Play direct
03 Dec - 12 Dec Fly Play direct
06 Dec - 31 Jan Icelandair direct
13 Dec - 17 Dec Fly Play direct
04 Dec - 13 Dec Fly Play direct
08 Dec - 15 Dec Icelandair direct
30 Dec - 08 Jan Fly Play direct
14 Dec - 21 Dec Fly Play direct
30 Dec - 09 Jan Fly Play direct
29 Dec - 04 Jan Fly Play direct
22 Dec - 29 Dec Fly Play direct
11 Dec - 25 Dec Icelandair direct
26 Dec - 30 Dec Fly Play direct
19 Dec - 10 Jan Icelandair direct

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

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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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