| Lockport to Opwijk | 4,157.27 mi (6,690.48 km) |
| Lockport to Ostend | 4,100.84 mi (6,599.66 km) |
| Lockport to Oud-Heverlee | 4,180.09 mi (6,727.20 km) |
| Lockport to Oud-Turnhout | 4,174.76 mi (6,718.63 km) |
| Lockport to Oudenaarde | 4,139.42 mi (6,661.75 km) |
| Lockport to Oudenburg | 4,105.32 mi (6,606.88 km) |
| Lockport to Oupeye | 4,221.06 mi (6,793.14 km) |
| Lockport to Overijse | 4,176.86 mi (6,722.00 km) |
| Lockport to Overpelt | 4,194.38 mi (6,750.21 km) |
| Lockport to Paal | 4,191.66 mi (6,745.83 km) |
| Lockport to Peer | 4,198.75 mi (6,757.24 km) |
| Lockport to Pepinster | 4,232.66 mi (6,811.81 km) |
| Lockport to Peruwelz | 4,150.41 mi (6,679.44 km) |
| Lockport to Perwez | 4,193.08 mi (6,748.12 km) |
| Lockport to Philippeville | 4,198.22 mi (6,756.38 km) |
