Cheapest return flights from Chicago to Istanbul in August from $624

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

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

Return flights

30 Aug - 12 Sep Icelandair
29 Aug - 07 Sep Icelandair
24 Aug - 30 Aug Icelandair
27 Aug - 09 Sep Icelandair
26 Aug - 05 Sep Icelandair
26 Aug - 09 Sep Icelandair
30 Aug - 06 Sep Icelandair
26 Aug - 02 Sep Icelandair
26 Aug - 03 Sep Icelandair
31 Aug - 11 Sep Icelandair
17 Aug - 26 Aug Icelandair
29 Aug - 01 Sep Icelandair
07 Aug - 22 Aug Air Canada
17 Aug - 27 Aug Austrian Airlines
06 Aug - 13 Aug SWISS
01 Aug - 15 Aug Icelandair
11 Aug - 25 Aug Air Canada
13 Aug - 25 Aug Lufthansa
11 Aug - 17 Aug Air Canada
16 Aug - 31 Aug Icelandair

Also check the deals for one-way flights from Chicago to Istanbul in August.

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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