Cheapest return flights from Keflavik to Newark in December from 421€

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

Return flights

10 Dec - 14 Dec Icelandair direct
09 Dec - 12 Dec Icelandair direct
11 Dec - 14 Dec Icelandair direct
09 Dec - 15 Dec Icelandair direct
03 Dec - 08 Dec Icelandair direct
09 Dec - 13 Dec Icelandair direct
03 Dec - 07 Dec Icelandair direct
26 Dec - 02 Jan Icelandair direct
27 Dec - 31 Dec Icelandair direct
04 Dec - 10 Dec Icelandair direct
25 Dec - 04 Jan Icelandair direct
05 Dec - 09 Dec Icelandair direct
19 Dec - 02 Jan Icelandair direct
25 Dec - 03 Jan Icelandair direct
29 Dec - 03 Jan Icelandair direct

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

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