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

Return flights

13 Aug - 26 Aug	Air Canada
19 Aug - 11 Sep	Air Canada
26 Aug - 12 Sep	Air Canada
12 Aug - 09 Sep	Air Canada
27 Aug - 03 Sep	Air Canada
25 Aug - 18 Sep	Air Canada
10 Aug - 30 Sep	Air Canada
20 Aug - 17 Sep	Air Canada
05 Aug - 05 Sep	Air Canada
19 Aug - 16 Sep	Air Canada
24 Aug - 05 Sep	Lufthansa
21 Aug - 26 Aug	Air Canada
05 Aug - 22 Aug	Air Canada
05 Aug - 14 Aug	Air Canada
14 Aug - 25 Aug	Air Canada
05 Aug - 19 Aug	Air Canada
07 Aug - 13 Aug	Air Canada
12 Aug - 19 Aug	Air Canada
06 Aug - 20 Aug	Delta
04 Aug - 12 Aug	Air Canada

Also check the deals for one-way flights from New York to Istanbul 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 Istanbul in August from $517

Return flights