Cheapest return flights from New York to Keflavik in August from $395

Best time to book flights for New York (JFK) to Keflavik (KEF) flights at AirHint

AirHint found the following cheapest return flights from New York (JFK) to Keflavik (KEF) in August 2025 (see full year).

Return flights

20 Aug - 03 Sep Icelandair direct
27 Aug - 07 Sep Icelandair direct
27 Aug - 06 Sep Icelandair direct
14 Aug - 23 Aug Air Canada
10 Aug - 24 Aug Air Canada
16 Aug - 24 Aug Air Canada
10 Aug - 23 Aug Air Canada
17 Aug - 24 Aug Air Canada
21 Aug - 29 Aug KLM
21 Aug - 28 Aug Icelandair direct
16 Aug - 27 Aug KLM
18 Aug - 29 Aug Air France direct
18 Aug - 25 Aug Air France direct
31 Aug - 11 Sep Air France direct
26 Aug - 05 Sep Air France
23 Aug - 03 Sep Air France direct
31 Aug - 07 Sep Air France direct
30 Aug - 07 Sep Air France direct
23 Aug - 05 Sep Air France direct
30 Aug - 05 Sep Icelandair direct

Also check the deals for one-way flights from New York 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.

Book a cheap hotel in Keflavik

Cheap car rent in Keflavik