AirHint found the following cheapest return flights from Chicago (ORD) to Brussels (BRU) in January 2026 (see full year).
Return flights
| 21 Jan - 05 Feb | Aer Lingus | ||
| 20 Jan - 27 Jan | Aer Lingus | ||
| 28 Jan - 03 Feb | Scandinavian Airlines | ||
| 22 Jan - 25 Jan | Scandinavian Airlines | ||
| 28 Jan - 01 Feb | United | ||
| 22 Jan - 25 Jan | Lufthansa | direct |
Also check the deals for one-way flights from Chicago to Brussels in January.
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