Cheapest return flights from Chicago to Brussels in September from 490€

Best time to book flights for Chicago (ORD) to Brussels (BRU) flights at AirHint

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

Return flights

07 Sep - 14 Sep Icelandair
17 Sep - 24 Sep Icelandair
08 Sep - 19 Sep Icelandair
07 Sep - 19 Sep Icelandair
15 Sep - 20 Sep TAP
27 Sep - 04 Oct United
08 Sep - 19 Sep Brussels Airlines direct
07 Sep - 19 Sep Brussels Airlines direct

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

Skyscanner

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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