Cheapest return flights from New York to Keflavik in December from 618€

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

Return flights

30 Dec - 13 Jan SWISS
30 Dec - 13 Jan Icelandair direct
29 Dec - 13 Jan jetBlue
29 Dec - 13 Jan Icelandair direct
30 Dec - 08 Jan Lufthansa
31 Dec - 07 Jan SWISS
30 Dec - 08 Jan Icelandair direct
29 Dec - 07 Jan Norse Atlantic Airways
31 Dec - 05 Jan Icelandair
29 Dec - 05 Jan SWISS

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

Powered by

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.