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

Return flights

30 Jul - 05 Aug	Fly Play	direct
23 Jul - 05 Aug	Fly Play	direct
10 Jul - 16 Jul	Air Canada
19 Jul - 21 Jul	Fly Play	direct
30 Jul - 06 Aug	Fly Play	direct
24 Jul - 30 Jul	United
24 Jul - 27 Jul	Air Canada
31 Jul - 04 Aug	United
28 Jul - 04 Aug	United	direct
29 Jul - 06 Aug	Air Canada
30 Jul - 03 Aug	Air Canada
30 Jul - 04 Aug	United	direct
23 Jul - 02 Aug	United
26 Jul - 03 Aug	Air Canada
10 Jul - 16 Jul	Icelandair	direct
15 Jul - 21 Jul	Fly Play	direct
19 Jul - 31 Jul	Fly Play	direct
19 Jul - 24 Jul	Icelandair	direct
11 Jul - 14 Jul	Icelandair	direct
11 Jul - 14 Jul	United

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.

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Cheapest return flights from New York to Keflavik in July from 301€

Return flights