Cheapest return flights from Chicago to Istanbul in April from 671€

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

Return flights

13 Apr - 27 Apr KLM
03 Apr - 25 Apr KLM
15 Apr - 09 May Lufthansa
16 Apr - 30 Apr Lufthansa
28 Apr - 23 May Air France
16 Apr - 30 Apr Turkish Airlines direct
13 Apr - 27 Apr Turkish Airlines direct
03 Apr - 25 Apr Turkish Airlines direct
15 Apr - 09 May Turkish Airlines direct
28 Apr - 23 May Turkish Airlines direct

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

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