Cheapest return flights from Chicago to Istanbul in April from $634

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

Return flights

07 Apr - 16 Apr Icelandair
06 Apr - 13 Apr Lufthansa
07 Apr - 17 Apr Icelandair
22 Apr - 27 Apr Aer Lingus
17 Apr - 26 Apr Scandinavian Airlines
29 Apr - 06 May KLM
16 Apr - 21 Apr Icelandair
02 Apr - 09 Apr KLM
10 Apr - 18 Apr Icelandair
06 Apr - 04 May Spirit Airlines
12 Apr - 26 Apr KLM
22 Apr - 29 May Lufthansa
02 Apr - 30 Apr Lufthansa
27 Apr - 19 May KLM

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

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