Cheapest return flights from Chicago to Brussels in October from $459

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 October 2025 (see full year).

Return flights

20 Oct - 27 Oct Scandinavian Airlines
12 Oct - 26 Oct Scandinavian Airlines
09 Oct - 23 Oct Scandinavian Airlines
09 Oct - 16 Oct Icelandair
04 Oct - 11 Oct Icelandair
29 Oct - 05 Nov United direct
09 Oct - 23 Oct United direct
09 Oct - 16 Oct United direct
20 Oct - 27 Oct United direct
19 Oct - 26 Oct United direct
04 Oct - 11 Oct United direct

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

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.

Book a cheap hotel in Brussels

Cheap car rent in Brussels