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

Return flights

26 Jul - 02 Aug	Air Canada
23 Jul - 30 Jul	Air Canada
28 Jul - 04 Aug	Air Canada
27 Jul - 03 Aug	Air Canada
24 Jul - 31 Jul	Air Canada
25 Jul - 01 Aug	Air Canada
09 Jul - 16 Jul	Air Canada
07 Jul - 14 Jul	Icelandair	direct
27 Jul - 03 Aug	Icelandair	direct
28 Jul - 04 Aug	Icelandair	direct
20 Jul - 27 Jul	United
09 Jul - 16 Jul	Icelandair	direct
31 Jul - 08 Aug	United
24 Jul - 05 Aug	United
23 Jul - 02 Aug	United
31 Jul - 03 Aug	United
19 Jul - 23 Jul	Icelandair	direct
10 Jul - 16 Jul	Icelandair	direct
10 Jul - 15 Jul	Icelandair	direct
11 Jul - 16 Jul	Delta	direct

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

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

Cheapest return flights from New York to Keflavik in July from 333€

Return flights