Cheapest return flights from Newark to Keflavik in December from $452

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

01 Dec - 06 Dec Icelandair direct
10 Dec - 17 Dec Icelandair direct
11 Dec - 18 Dec Icelandair direct
30 Dec - 09 Jan Icelandair direct
17 Dec - 22 Dec Icelandair direct
23 Dec - 03 Jan Icelandair direct
30 Dec - 04 Jan Icelandair direct
24 Dec - 29 Dec Icelandair direct
21 Dec - 27 Dec Icelandair direct
25 Dec - 30 Dec Icelandair direct
22 Dec - 29 Dec Icelandair direct
25 Dec - 29 Dec Icelandair direct
19 Dec - 26 Dec Icelandair direct
30 Dec - 03 Jan Icelandair direct
25 Dec - 01 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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