Cheapest return flights from Chicago to Istanbul in December from $1040
AirHint found the following cheapest return flights from Chicago (ORD) to Istanbul (IST) in December 2025 (see full year).
Return flights
| 20 Dec - 27 Dec | Air Serbia | ||
| 22 Dec - 30 Dec | Turkish Airlines | direct | |
| 20 Dec - 27 Dec | Turkish Airlines | direct |
Also check the deals for one-way flights from Chicago to Istanbul in December.
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.
