Cheapest return flights from Newark to Keflavik in December from $509

Best time to book flights for Newark (EWR) to Keflavik (KEF) flights at AirHint

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

Return flights

08 Dec - 12 Dec Icelandair direct
03 Dec - 08 Dec Icelandair direct
14 Dec - 20 Dec Icelandair direct
24 Dec - 31 Dec Icelandair direct
25 Dec - 31 Dec Icelandair direct
22 Dec - 29 Dec Icelandair direct
28 Dec - 03 Jan Icelandair direct
20 Dec - 27 Dec Icelandair direct
25 Dec - 01 Jan Icelandair direct
25 Dec - 02 Jan Icelandair direct
26 Dec - 01 Jan Lufthansa
26 Dec - 01 Jan Icelandair direct
26 Dec - 04 Jan Icelandair direct
27 Dec - 03 Jan Icelandair direct

Also check the deals for one-way flights from Newark 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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