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

Return flights

06 Sep - 09 Sep	Icelandair
10 Sep - 20 Sep	KLM
08 Sep - 15 Sep	Air France
17 Sep - 21 Sep	Transavia France
27 Sep - 04 Oct	Transavia France
18 Sep - 04 Oct	Icelandair
17 Sep - 22 Oct	KLM
15 Sep - 15 Oct	Air France
22 Sep - 28 Sep	Transavia France
17 Sep - 20 Sep	Transavia France
29 Sep - 05 Oct	Transavia France
10 Sep - 22 Sep	Transavia France
25 Sep - 25 Sep	Transavia France
10 Sep - 19 Sep	Transavia France
22 Sep - 29 Sep	Transavia France
09 Sep - 08 Oct	Air France
24 Sep - 04 Oct	Transavia France
25 Sep - 01 Oct	Icelandair
17 Sep - 01 Oct	Transavia France
11 Sep - 02 Oct	KLM

Also check the deals for one-way flights from Istanbul to Newark 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.

Book a cheap hotel in Newark

Cheap car rent in Newark

Cheapest return flights from Istanbul to Newark in September from 386€

Return flights