Cheapest one-way flights from Chicago to Istanbul in December from 213€

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

One-Way flights

08 Dec Spirit Airlines
06 Dec Spirit Airlines
31 Dec Icelandair
09 Dec Spirit Airlines
07 Dec Frontier Airlines
05 Dec Spirit Airlines
12 Dec Frontier Airlines
11 Dec Spirit Airlines
13 Dec Frontier Airlines
29 Dec Spirit Airlines

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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