AirHint found the following cheapest one-way flights from Chicago (ORD) to Brussels (BRU) in May 2026 (see full year).
One-Way flights
| 08 May | jetBlue | ||
| 29 May | jetBlue | ||
| 02 May | Spirit Airlines | ||
| 09 May | jetBlue | ||
| 07 May | Spirit Airlines | ||
| 23 May | United | direct | |
| 09 May | United | direct | |
| 07 May | United | direct | |
| 02 May | United | direct |
Also check the deals for return flights from Chicago to Brussels in May.
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