Cheapest return flights from Chicago to Istanbul in December from $644

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

Return flights

31 Dec - 14 Jan Icelandair
08 Dec - 15 Dec Air Canada
02 Dec - 09 Dec Icelandair
01 Dec - 08 Dec Air Canada
15 Dec - 23 Jan Arajet
07 Dec - 13 Dec Aer Lingus
01 Dec - 10 Dec Spirit Airlines
08 Dec - 12 Dec Aer Lingus
15 Dec - 27 Jan Arajet
06 Dec - 13 Dec Aer Lingus
02 Dec - 17 Dec Spirit Airlines
03 Dec - 07 Jan Frontier Airlines
08 Dec - 22 Dec Icelandair
05 Dec - 09 Dec Aer Lingus
15 Dec - 17 Jan Frontier Airlines
04 Dec - 07 Jan Spirit Airlines
01 Dec - 10 Jan Arajet
27 Dec - 16 Jan Air Serbia
28 Dec - 11 Jan Lufthansa
30 Dec - 06 Jan Icelandair

Also check the deals for one-way flights from Chicago to Istanbul in December.

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