AirHint found the following cheapest return flights from Chicago (ORD) to Brussels (BRU) in June 2026 (see full year).
Return flights
| 09 Jun - 16 Jun | Aer Lingus | ||
| 05 Jun - 12 Jun | jetBlue | ||
| 15 Jun - 22 Jun | jetBlue |
Also check the deals for one-way flights from Chicago to Brussels in June.
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