| San Gwann to Opwijk | 1,158.92 mi (1,865.11 km) |
| San Gwann to Ostend | 1,202.83 mi (1,935.77 km) |
| San Gwann to Oud-Heverlee | 1,140.51 mi (1,835.47 km) |
| San Gwann to Oud-Turnhout | 1,163.42 mi (1,872.34 km) |
| San Gwann to Oudenaarde | 1,165.08 mi (1,875.01 km) |
| San Gwann to Oudenburg | 1,198.47 mi (1,928.76 km) |
| San Gwann to Oupeye | 1,112.94 mi (1,791.10 km) |
| San Gwann to Overijse | 1,140.34 mi (1,835.20 km) |
| San Gwann to Overpelt | 1,148.76 mi (1,848.75 km) |
| San Gwann to Paal | 1,142.62 mi (1,838.87 km) |
| San Gwann to Peer | 1,142.86 mi (1,839.26 km) |
| San Gwann to Pepinster | 1,100.79 mi (1,771.54 km) |
| San Gwann to Peruwelz | 1,145.96 mi (1,844.25 km) |
| San Gwann to Perwez | 1,124.72 mi (1,810.07 km) |
| San Gwann to Philippeville | 1,105.06 mi (1,778.43 km) |
