Cheapest return flights from Chicago to Istanbul in December from 506€

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

Return flights

01 Dec - 11 Dec Icelandair
09 Dec - 16 Dec Lufthansa
03 Dec - 16 Jan Icelandair
04 Dec - 09 Dec Icelandair
02 Dec - 16 Dec LOT
04 Dec - 09 Dec Turkish Airlines direct
02 Dec - 16 Dec Turkish Airlines direct
09 Dec - 09 Jan Air France
05 Dec - 19 Dec Turkish Airlines direct
12 Dec - 14 Jan Air Canada
17 Dec - 19 Dec Air France
26 Dec - 09 Jan Lufthansa
09 Dec - 16 Dec Turkish Airlines direct
03 Dec - 16 Jan Turkish Airlines direct
23 Dec - 30 Dec Lufthansa
23 Dec - 06 Jan Air France
24 Dec - 01 Jan Air France
10 Dec - 03 Jan Air France
09 Dec - 09 Jan Turkish Airlines direct
25 Dec - 03 Jan Air France

Also check the deals for one-way 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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