Cheapest return flights from New York to Keflavik in December from 586€

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

Return flights

12 Dec - 11 Jan Scandinavian Airlines
09 Dec - 16 Dec jetBlue
07 Dec - 14 Dec jetBlue
31 Dec - 10 Jan Icelandair direct
10 Dec - 17 Dec Icelandair
29 Dec - 12 Jan Icelandair direct
30 Dec - 11 Jan Icelandair direct
30 Dec - 12 Jan Icelandair direct
14 Dec - 19 Dec jetBlue
08 Dec - 15 Dec Norse Atlantic Airways (UK)
11 Dec - 19 Dec Icelandair
10 Dec - 12 Dec Lufthansa
14 Dec - 18 Dec jetBlue
28 Dec - 09 Jan Icelandair direct
30 Dec - 08 Jan Icelandair direct
08 Dec - 15 Dec Icelandair direct
16 Dec - 23 Dec Icelandair
29 Dec - 07 Jan Icelandair
27 Dec - 08 Jan Finnair
29 Dec - 07 Jan Icelandair direct

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

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