Cheapest return ORD–IST flights, July

AirHint found the following cheapest return flights from Chicago (ORD) to Istanbul (IST) in July 2026 (see full year).

Return flights

03 Jul - 01 Aug Frontier Airlines
12 Jul - 22 Jul HiSky Europe
11 Jul - 29 Jul Frontier Airlines
16 Jul - 29 Jul HiSky Europe
16 Jul - 30 Jul Delta
09 Jul - 23 Jul Delta
02 Jul - 09 Jul HiSky Europe
05 Jul - 21 Jul HiSky Europe
01 Jul - 31 Jul Delta
01 Jul - 15 Jul Delta
18 Jul - 30 Jul KLM
03 Jul - 01 Aug Turkish Airlines direct

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

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