Cheapest one-way flights from New York to Keflavik in September from 292€

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

AirHint found the following cheapest one-way flights from New York (JFK) to Keflavik (KEF) in September 2025 (see full year).

One-Way flights

03 Sep jetBlue
30 Sep jetBlue
16 Sep Norse Atlantic Airways (UK)
17 Sep Norse Atlantic Airways (UK)
14 Sep Norse Atlantic Airways (UK)
21 Sep Icelandair direct
12 Sep Icelandair direct
30 Sep Icelandair direct
19 Sep Icelandair direct
20 Sep Icelandair direct

Also check the deals for return flights from New York 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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