Cheapest return flights from Newark to Keflavik in August from $399

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 August 2025 (see full year).

Return flights

10 Aug - 23 Aug Air Canada
10 Aug - 24 Aug Air Canada
31 Aug - 08 Sep KLM
20 Aug - 27 Aug SWISS
24 Aug - 31 Aug SWISS
06 Aug - 15 Aug Air Canada
29 Aug - 05 Sep Icelandair direct
10 Aug - 17 Aug Air Canada
02 Aug - 10 Aug KLM
07 Aug - 10 Aug Spirit Airlines
17 Aug - 21 Aug Icelandair direct
20 Aug - 27 Aug Icelandair direct
31 Aug - 08 Sep Icelandair direct
28 Aug - 08 Sep Icelandair direct
29 Aug - 03 Sep Icelandair direct
29 Aug - 02 Sep Icelandair direct
22 Aug - 02 Sep Icelandair direct
27 Aug - 07 Sep Scandinavian Airlines
31 Aug - 07 Sep Icelandair direct
30 Aug - 07 Sep Icelandair direct

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

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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