Cheapest one-way flights from Chicago to Istanbul in December from 223€

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

One-Way flights

03 Dec Frontier Airlines
31 Dec Icelandair
07 Dec Icelandair
09 Dec jetBlue
02 Dec Spirit Airlines
10 Dec Icelandair
06 Dec Air Serbia
14 Dec Frontier Airlines
12 Dec Frontier Airlines
13 Dec Frontier 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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