Cheapest return flights from Chicago to Istanbul in September from 584€

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

Return flights

24 Sep - 22 Oct Frontier Airlines
30 Sep - 14 Oct Spirit Airlines
14 Sep - 15 Oct Frontier Airlines
23 Sep - 30 Sep Spirit Airlines
22 Sep - 29 Sep Frontier Airlines
22 Sep - 24 Sep Scandinavian Airlines
21 Sep - 11 Oct Lufthansa
22 Sep - 28 Sep Frontier Airlines
18 Sep - 25 Sep Frontier Airlines
21 Sep - 28 Sep Frontier Airlines
27 Sep - 18 Oct LOT
23 Sep - 28 Sep Spirit Airlines
21 Sep - 12 Oct Frontier Airlines
18 Sep - 09 Oct Frontier Airlines
20 Sep - 11 Oct Spirit Airlines
14 Sep - 22 Sep Frontier Airlines
18 Sep - 11 Oct Royal Jordanian
20 Sep - 27 Sep Spirit Airlines
26 Sep - 18 Oct Frontier Airlines

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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