Cheapest one-way flights from Chicago to Istanbul in December from $261

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

One-Way flights

06 Dec Spirit Airlines
02 Dec Spirit Airlines
13 Dec Spirit Airlines
12 Dec Spirit Airlines
16 Dec Spirit Airlines
10 Dec LOT
05 Dec LOT
02 Dec Turkish Airlines direct
23 Dec Spirit Airlines
26 Dec LOT

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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