Cheapest one-way flights from Chicago to Istanbul in December from $321

AirHint found the following cheapest one-way flights from Chicago (ORD) to Istanbul (IST) in December 2025 (see full year).

One-Way flights

30 Dec Icelandair
25 Dec Spirit Airlines
30 Dec Turkish Airlines direct
24 Dec Lufthansa
26 Dec Lufthansa
23 Dec Air Canada
17 Dec Royal Jordanian
22 Dec Frontier Airlines
20 Dec Arajet
26 Dec Turkish Airlines direct

Also check the deals for return flights from Chicago to Istanbul in December.

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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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