Cheapest return MDW–IST flights, May

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

Return flights

25 May - 17 Jun Porter Airlines (Canada) Ltd
13 May - 09 Jun Porter Airlines (Canada) Ltd
31 May - 28 Jun Porter Airlines (Canada) Ltd
14 May - 14 Jun Porter Airlines (Canada) Ltd
19 May - 22 May Porter Airlines (Canada) Ltd
16 May - 07 Jun Porter Airlines (Canada) Ltd
19 May - 30 May Porter Airlines (Canada) Ltd
31 May - 07 Jun Porter Airlines (Canada) Ltd
12 May - 22 May Delta
05 May - 12 May Delta
03 May - 13 May Delta
10 May - 30 May Delta
11 May - 13 May Porter Airlines (Canada) Ltd
23 May - 30 May Porter Airlines (Canada) Ltd
04 May - 19 May Delta
03 May - 14 May Delta
23 May - 07 Jun Porter Airlines (Canada) Ltd

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

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