Cheapest return flights from New York to Keflavik in December from $314

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 - 06 Dec Icelandair direct
08 Dec - 13 Dec Icelandair direct
05 Dec - 10 Dec Icelandair direct
07 Dec - 12 Dec Icelandair direct
03 Dec - 08 Dec Icelandair direct
06 Dec - 13 Dec Icelandair direct
07 Dec - 16 Dec Icelandair direct
10 Dec - 15 Dec Icelandair direct
12 Dec - 16 Dec British Airways
16 Dec - 23 Dec Icelandair direct
29 Dec - 08 Jan Finnair
28 Dec - 08 Jan Icelandair direct
29 Dec - 08 Jan Icelandair direct
20 Dec - 04 Jan Icelandair direct
28 Dec - 02 Jan jetBlue
27 Dec - 03 Jan Icelandair direct
28 Dec - 02 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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