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

Return flights

24 Aug - 31 Aug	Air Canada
25 Aug - 01 Sep	Air Canada
26 Aug - 02 Sep	Air Canada
23 Aug - 30 Aug	Virgin Atlantic
27 Aug - 03 Sep	Virgin Atlantic
27 Aug - 02 Sep	Air France
29 Aug - 05 Sep	Air Canada
20 Aug - 30 Aug	Delta
30 Aug - 06 Sep	Air Canada
29 Aug - 06 Sep	Air Canada
14 Aug - 28 Aug	Air Canada
31 Aug - 07 Sep	Air Canada
19 Aug - 25 Aug	Air Canada
28 Aug - 04 Sep	Air Canada
29 Aug - 02 Sep	Delta
19 Aug - 24 Aug	Air Canada
13 Aug - 21 Aug	Air France
01 Aug - 07 Aug	Air Canada
04 Aug - 17 Aug	Air Canada
10 Aug - 17 Aug	Air Canada

Also check the deals for one-way flights from New York to Keflavik 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 New York to Keflavik in August from 328€

Return flights