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Results refresh when you open or revisit this page. Last snapshot: Jul 17, 2026.

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Cheapest one-way flights from Chicago (MDW) to Madrid (MAD), September

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Dates, airline, and price
Dates	Airline	Price
16 Sep	Porter Airlines (Canada) Ltd
19 Sep	Porter Airlines (Canada) Ltd
29 Sep	Porter Airlines (Canada) Ltd
27 Sep	Delta
05 Sep	Porter Airlines (Canada) Ltd
18 Sep	Porter Airlines (Canada) Ltd
01 Sep	Porter Airlines (Canada) Ltd
03 Sep	Porter Airlines (Canada) Ltd
06 Sep	Delta
09 Sep	Delta

deals for return flights from Chicago to Madrid in September.

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Updated Jul 17, 2026.

About these fares

These results come from our latest search across airlines for your currency. Prices change quickly and are not locked until you complete booking—always confirm the total and fare rules on the partner site.

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Cheapest one-way flights from Chicago (MDW) to Madrid (MAD), September

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