Cheapest return flights from Chicago to Istanbul in September from $740

Best time to book flights for Chicago (ORD) to Istanbul (SAW) flights at AirHint

AirHint found the following cheapest return flights from Chicago (ORD) to Istanbul (SAW) in September 2025 (see full year).

Return flights

08 Sep - 18 Sep Icelandair
24 Sep - 01 Oct Icelandair
11 Sep - 25 Sep Icelandair
08 Sep - 22 Sep Qatar Airways
04 Sep - 15 Sep Qatar Airways
07 Sep - 14 Sep Qatar Airways
26 Sep - 03 Oct Icelandair
15 Sep - 25 Sep Icelandair
06 Sep - 16 Sep Qatar Airways
25 Sep - 31 Oct Qatar Airways

Also check the deals for one-way flights from Chicago 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.

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