| Bon Air to Opwijk | 3,937.98 mi (6,337.57 km) |
| Bon Air to Ostend | 3,880.33 mi (6,244.78 km) |
| Bon Air to Oud-Heverlee | 3,960.94 mi (6,374.52 km) |
| Bon Air to Oud-Turnhout | 3,961.84 mi (6,375.96 km) |
| Bon Air to Oudenaarde | 3,916.99 mi (6,303.78 km) |
| Bon Air to Oudenburg | 3,884.60 mi (6,251.66 km) |
| Bon Air to Oupeye | 4,003.83 mi (6,443.54 km) |
| Bon Air to Overijse | 3,956.74 mi (6,367.76 km) |
| Bon Air to Overpelt | 3,981.81 mi (6,408.10 km) |
| Bon Air to Paal | 3,976.38 mi (6,399.37 km) |
| Bon Air to Peer | 3,985.40 mi (6,413.88 km) |
| Bon Air to Pepinster | 4,014.52 mi (6,460.75 km) |
| Bon Air to Peruwelz | 3,924.33 mi (6,315.61 km) |
| Bon Air to Perwez | 3,972.20 mi (6,392.64 km) |
| Bon Air to Philippeville | 3,971.95 mi (6,392.23 km) |
