Cheapest return flights from New York to Keflavik in September from 263€

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

Return flights

21 Sep - 10 Oct Icelandair direct
26 Sep - 02 Oct Icelandair direct
28 Sep - 03 Oct Icelandair direct
26 Sep - 01 Oct Icelandair direct
22 Sep - 01 Oct Icelandair direct
15 Sep - 19 Sep Icelandair direct
15 Sep - 22 Sep Icelandair direct
30 Sep - 06 Oct Icelandair direct
26 Sep - 08 Oct Icelandair direct
21 Sep - 26 Sep Icelandair direct
22 Sep - 26 Sep Icelandair direct
25 Sep - 30 Sep Icelandair direct
20 Sep - 25 Sep Icelandair direct
20 Sep - 30 Sep Icelandair direct
08 Sep - 22 Sep Icelandair direct
11 Sep - 17 Sep Icelandair direct
07 Sep - 13 Sep Icelandair direct
27 Sep - 11 Oct jetBlue
30 Sep - 04 Oct Icelandair direct
17 Sep - 11 Oct Icelandair direct

Also check the deals for one-way 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.

Book a cheap hotel in Keflavik

Cheap car rent in Keflavik

Feel free to contact us with any feedback or request another flight research.