Cheapest return flights from Newark to Keflavik in December from $401

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

Return flights

01 Dec - 05 Dec Icelandair direct
03 Dec - 10 Dec Icelandair direct
07 Dec - 11 Dec Icelandair direct
05 Dec - 10 Dec Icelandair direct
03 Dec - 13 Dec Icelandair direct
08 Dec - 14 Dec Icelandair direct
09 Dec - 14 Dec Icelandair direct
11 Dec - 14 Dec Scandinavian Airlines
13 Dec - 20 Dec Icelandair direct
07 Dec - 13 Dec Icelandair direct
28 Dec - 02 Jan Icelandair direct
23 Dec - 03 Jan Icelandair direct
24 Dec - 01 Jan Icelandair direct
30 Dec - 05 Jan Icelandair direct
28 Dec - 03 Jan Icelandair direct
22 Dec - 01 Jan Icelandair direct
23 Dec - 02 Jan Icelandair direct
26 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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