Cheapest return flights from New York to Keflavik in August from $398

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

30 Aug - 10 Sep Icelandair direct
21 Aug - 27 Aug Delta direct
29 Aug - 03 Sep Air France direct
30 Aug - 11 Sep KLM direct
27 Aug - 03 Sep Icelandair direct
17 Aug - 27 Aug Icelandair direct
03 Aug - 07 Aug Icelandair direct
30 Aug - 03 Sep Icelandair direct
26 Aug - 03 Sep Icelandair direct
06 Aug - 11 Aug Icelandair direct
19 Aug - 26 Aug Air France
21 Aug - 25 Aug Air France
23 Aug - 29 Aug Icelandair direct
28 Aug - 03 Sep Icelandair direct
28 Aug - 02 Sep Icelandair direct
22 Aug - 30 Aug Air Canada
18 Aug - 25 Aug Air France
06 Aug - 15 Aug Icelandair direct
14 Aug - 01 Sep Icelandair direct

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

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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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