Cheapest return flights from Chicago to Istanbul in May from 665€

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

Return flights

01 May - 07 May Icelandair
01 May - 10 May Icelandair
07 May - 14 May Icelandair
03 May - 16 May Icelandair
06 May - 16 May Icelandair
02 May - 13 May Etihad Airways
30 May - 09 Jun Icelandair
11 May - 29 May Spirit Airlines
02 May - 09 May Spirit Airlines
18 May - 27 May Icelandair
13 May - 27 May Delta
30 May - 04 Jun Icelandair
30 May - 08 Jun Icelandair
18 May - 14 Jun Icelandair
31 May - 09 Jun Icelandair
27 May - 03 Jun KLM
24 May - 07 Jun KLM
15 May - 11 Jun KLM
21 May - 03 Jun KLM
27 May - 02 Jun KLM

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

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