Cheapest return flights from Chicago to Istanbul in May from 548€

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

Return flights

03 May - 07 May Icelandair
03 May - 16 May Icelandair
06 May - 10 May Icelandair
01 May - 12 May Icelandair
03 May - 10 May Icelandair
07 May - 11 May Icelandair
07 May - 17 May Frontier Airlines
07 May - 10 May Icelandair
05 May - 20 May Icelandair
05 May - 19 May Icelandair
22 May - 06 Jun Icelandair
28 May - 17 Jun KLM
31 May - 11 Jun Spirit Airlines
20 May - 05 Jun KLM
19 May - 11 Jun KLM
19 May - 11 Jun Turkish Airlines direct
21 May - 05 Jun Turkish Airlines direct
20 May - 05 Jun Turkish Airlines direct
22 May - 06 Jun Turkish Airlines direct
28 May - 17 Jun Turkish Airlines direct

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

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