| Ulus to Opwijk | 1,493.10 mi (2,402.92 km) |
| Ulus to Ostend | 1,550.66 mi (2,495.55 km) |
| Ulus to Oud-Heverlee | 1,470.39 mi (2,366.36 km) |
| Ulus to Oud-Turnhout | 1,466.15 mi (2,359.54 km) |
| Ulus to Oudenaarde | 1,515.78 mi (2,439.42 km) |
| Ulus to Oudenburg | 1,546.57 mi (2,488.97 km) |
| Ulus to Oupeye | 1,426.96 mi (2,296.47 km) |
| Ulus to Overijse | 1,475.15 mi (2,374.02 km) |
| Ulus to Overpelt | 1,446.22 mi (2,327.47 km) |
| Ulus to Paal | 1,452.92 mi (2,338.25 km) |
| Ulus to Peer | 1,443.03 mi (2,322.34 km) |
| Ulus to Pepinster | 1,417.00 mi (2,280.43 km) |
| Ulus to Peruwelz | 1,511.23 mi (2,432.09 km) |
| Ulus to Perwez | 1,460.46 mi (2,350.38 km) |
| Ulus to Philippeville | 1,464.79 mi (2,357.36 km) |
