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

Return flights

21 Aug - 28 Aug	Air Canada
25 Aug - 09 Sep	Air Canada
25 Aug - 06 Sep	Delta
06 Aug - 20 Aug	Delta
18 Aug - 29 Aug	Air Canada
09 Aug - 18 Aug	Air Canada
19 Aug - 29 Aug	Air Canada
09 Aug - 16 Aug	Air Canada
01 Aug - 21 Aug	Air Canada
27 Aug - 03 Sep	Delta
20 Aug - 17 Sep	Delta
26 Aug - 02 Sep	Delta
25 Aug - 18 Sep	Delta
02 Aug - 15 Aug	Air Canada
22 Aug - 29 Aug	Air Canada
18 Aug - 27 Aug	Delta
11 Aug - 11 Sep	Delta
27 Aug - 15 Sep	Delta
21 Aug - 08 Sep	Delta
04 Aug - 04 Sep	Delta

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 541€

Return flights