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

Return flights

06 Sep - 09 Sep	Icelandair
08 Sep - 20 Sep	Icelandair
10 Sep - 21 Sep	Air Europa
29 Sep - 08 Oct	Icelandair
25 Sep - 04 Oct	Icelandair
06 Sep - 20 Sep	Icelandair
06 Sep - 16 Sep	Icelandair
22 Sep - 15 Oct	Icelandair
29 Sep - 04 Oct	Icelandair
25 Sep - 01 Oct	Icelandair
22 Sep - 22 Oct	Icelandair
22 Sep - 01 Oct	Icelandair
08 Sep - 15 Oct	Icelandair
22 Sep - 27 Sep	Icelandair
11 Sep - 20 Sep	Icelandair
11 Sep - 16 Sep	Icelandair
08 Sep - 16 Sep	Icelandair
18 Sep - 27 Sep	Icelandair
22 Sep - 05 Oct	Air Europa
20 Sep - 01 Oct	British Airways

Also check the deals for one-way flights from Istanbul to New York 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 Istanbul to New York in September from $430

Return flights