Cheapest return flights from Newark to Keflavik in October from $449

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 October 2025 (see full year).

Return flights

20 Oct - 27 Oct SWISS
12 Oct - 20 Oct Icelandair direct
07 Oct - 12 Oct Icelandair direct
19 Oct - 26 Oct Icelandair direct
16 Oct - 23 Oct Icelandair direct
20 Oct - 27 Oct Icelandair direct
03 Oct - 10 Oct Icelandair direct
13 Oct - 20 Oct Icelandair direct
03 Oct - 08 Oct Icelandair direct
02 Oct - 07 Oct Icelandair direct
28 Oct - 06 Nov Icelandair direct
20 Oct - 02 Nov Lufthansa

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

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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