AirHint found the following cheapest return flights from Chicago (MDW) to Brussels (BRU) in July 2025 (see full year).

Return flights

11 Jul - 14 Jul	Porter Airlines (Canada) Ltd
10 Jul - 16 Jul	Porter Airlines (Canada) Ltd
17 Jul - 21 Jul	KLM
10 Jul - 18 Jul	Porter Airlines (Canada) Ltd
31 Jul - 03 Aug	Delta
22 Jul - 29 Jul	Porter Airlines (Canada) Ltd

Also check the deals for one-way flights from Chicago to Brussels in July.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from Chicago to Brussels in July from 882€

Return flights