| Valley to Opwijk | 4,472.95 mi (7,198.52 km) |
| Valley to Ostend | 4,415.35 mi (7,105.81 km) |
| Valley to Oud-Heverlee | 4,495.93 mi (7,235.50 km) |
| Valley to Oud-Turnhout | 4,496.13 mi (7,235.82 km) |
| Valley to Oudenaarde | 4,452.26 mi (7,165.22 km) |
| Valley to Oudenburg | 4,419.65 mi (7,112.74 km) |
| Valley to Oupeye | 4,538.67 mi (7,304.28 km) |
| Valley to Overijse | 4,491.83 mi (7,228.90 km) |
| Valley to Overpelt | 4,516.09 mi (7,267.94 km) |
| Valley to Paal | 4,510.97 mi (7,259.70 km) |
| Valley to Peer | 4,519.77 mi (7,273.87 km) |
| Valley to Pepinster | 4,549.48 mi (7,321.67 km) |
| Valley to Peruwelz | 4,459.98 mi (7,177.65 km) |
| Valley to Perwez | 4,507.39 mi (7,253.94 km) |
| Valley to Philippeville | 4,507.68 mi (7,254.41 km) |
