Cheapest return flights from Chicago to Istanbul in May from $696

AirHint found the following cheapest return flights from Chicago (ORD) to Istanbul (IST) in May 2026 (see full year).

Return flights

12 May - 20 May Icelandair
14 May - 28 May Icelandair
18 May - 24 May Scandinavian Airlines
15 May - 15 Jun Scandinavian Airlines
14 May - 28 May Turkish Airlines direct
15 May - 15 Jun Turkish Airlines direct
12 May - 20 May Turkish Airlines direct
18 May - 24 May Turkish Airlines direct

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

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