Cheapest return flights from Chicago to Brussels in October from 450€

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

Return flights

19 Oct - 19 Nov Aer Lingus
27 Oct - 03 Nov Scandinavian Airlines
20 Oct - 27 Oct Turkish Airlines
17 Oct - 25 Oct SWISS
17 Oct - 26 Oct Turkish Airlines
24 Oct - 31 Oct Lufthansa
19 Oct - 19 Nov United direct
17 Oct - 24 Oct United direct
17 Oct - 26 Oct Lufthansa direct
17 Oct - 25 Oct Brussels Airlines direct

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

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