AirHint found the following cheapest return flights from Keflavik (KEF) to New York (JFK) in August 2026 (see full year).

Return flights

29 Aug - 05 Sep	Icelandair	direct
07 Aug - 14 Aug	Icelandair	direct
28 Aug - 07 Sep	Icelandair	direct
05 Aug - 09 Aug	Icelandair
06 Aug - 09 Aug	Finnair
15 Aug - 22 Aug	Finnair
06 Aug - 09 Aug	Icelandair	direct
05 Aug - 09 Aug	Icelandair	direct
15 Aug - 22 Aug	Icelandair	direct

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

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 Keflavik to New York in August from 462€

Return flights