AirHint found the following cheapest return flights from New York (LGA) to Istanbul (IST) in September 2026 (see full year).

Return flights

02 Sep - 07 Sep	Delta
02 Sep - 14 Sep	Delta
21 Sep - 28 Sep	Air Canada
05 Sep - 12 Sep	Delta
30 Sep - 20 Oct	Delta
30 Sep - 21 Oct	Delta
05 Sep - 14 Sep	Delta
09 Sep - 20 Sep	Air Transat
30 Sep - 18 Oct	Air Transat
30 Sep - 14 Oct	Air Transat
30 Sep - 16 Oct	Air Transat
30 Sep - 19 Oct	Delta
05 Sep - 03 Oct	Delta
30 Sep - 17 Oct	Delta
04 Sep - 20 Sep	Air Transat
30 Sep - 15 Oct	Delta
15 Sep - 21 Sep	Delta
01 Sep - 14 Sep	Delta
06 Sep - 15 Sep	Delta

Also check the deals for one-way flights from New York to Istanbul in September.

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 September from 735€

Return flights