AirHint found the following cheapest one-way flights from Chicago (ORD) to Istanbul (IST) in April 2026 (see full year).
One-Way flights
| 26 Apr | WestJet | ||
| 05 Apr | LOT | ||
| 05 Apr | Turkish Airlines | direct | |
| 26 Apr | Turkish Airlines | direct |
Also check the deals for return flights from Chicago to Istanbul in April.
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