Cheapest return flights from Newark to Istanbul in September from 634€

Best time to book flights for Newark (EWR) to Istanbul (IST) flights at AirHint

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

Return flights

22 Sep - 26 Sep Icelandair
11 Sep - 27 Sep FrenchBee
18 Sep - 25 Sep FrenchBee
08 Sep - 20 Sep FrenchBee
13 Sep - 21 Sep FrenchBee
18 Sep - 24 Sep FrenchBee
17 Sep - 30 Sep LOT
20 Sep - 30 Sep LOT
04 Sep - 14 Sep LOT
23 Sep - 30 Sep Icelandair
30 Sep - 21 Oct Delta
26 Sep - 10 Oct British Airways
30 Sep - 14 Oct Lufthansa
27 Sep - 26 Oct Delta

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

Skyscanner

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 Istanbul

Cheap car rent in Istanbul