Cheapest return flights from New York to Keflavik in August from $427

Best time to book flights for New York (LGA) to Keflavik (KEF) flights at AirHint

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

Return flights

19 Aug - 25 Aug Air France
21 Aug - 27 Aug Delta
20 Aug - 26 Aug Delta
22 Aug - 29 Aug Delta
21 Aug - 26 Aug Delta
20 Aug - 25 Aug Delta
25 Aug - 31 Aug Delta
28 Aug - 02 Sep Air France
28 Aug - 01 Sep Delta
01 Aug - 16 Aug Air Canada
09 Aug - 16 Aug Air Canada
14 Aug - 18 Aug Spirit Airlines
27 Aug - 02 Sep Spirit Airlines
30 Aug - 06 Sep Air Canada
29 Aug - 06 Sep Air Canada

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

Skyscanner

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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