Cheapest return flights from Newark to Keflavik in September from 460€

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 September 2025 (see full year).

Return flights

30 Sep - 09 Oct Icelandair direct
02 Sep - 10 Sep Icelandair direct
06 Sep - 12 Sep Icelandair direct
01 Sep - 11 Sep Icelandair direct
28 Sep - 05 Oct Icelandair direct
08 Sep - 15 Sep Icelandair direct
18 Sep - 25 Sep Icelandair direct
26 Sep - 04 Oct Icelandair direct
24 Sep - 28 Sep Icelandair direct
10 Sep - 14 Sep Icelandair direct
17 Sep - 22 Sep Icelandair direct
09 Sep - 11 Sep Icelandair direct
04 Sep - 15 Sep Brussels Airlines direct
24 Sep - 02 Oct Lufthansa
17 Sep - 02 Oct Lufthansa

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

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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