Cheapest return flights from New York to Keflavik in August from $424

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

Return flights

19 Aug - 12 Sep Air Canada
10 Aug - 19 Aug Finnair
17 Aug - 23 Aug Finnair
11 Aug - 05 Sep Finnair
18 Aug - 27 Aug Finnair
27 Aug - 08 Sep Finnair
18 Aug - 27 Aug Icelandair direct
27 Aug - 08 Sep Icelandair direct
19 Aug - 12 Sep Icelandair direct
08 Aug - 17 Aug Lufthansa
05 Aug - 15 Aug Finnair
06 Aug - 12 Aug Finnair
07 Aug - 29 Aug Lufthansa
08 Aug - 15 Aug Lufthansa
06 Aug - 12 Aug Icelandair direct
11 Aug - 05 Sep Icelandair direct

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

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