| Sason to Opwijk | 1,996.86 mi (3,213.64 km) |
| Sason to Ostend | 2,054.09 mi (3,305.74 km) |
| Sason to Oud-Heverlee | 1,974.40 mi (3,177.49 km) |
| Sason to Oud-Turnhout | 1,967.93 mi (3,167.08 km) |
| Sason to Oudenaarde | 2,020.31 mi (3,251.38 km) |
| Sason to Oudenburg | 2,050.13 mi (3,299.36 km) |
| Sason to Oupeye | 1,930.87 mi (3,107.43 km) |
| Sason to Overijse | 1,979.43 mi (3,185.58 km) |
| Sason to Overpelt | 1,948.13 mi (3,135.21 km) |
| Sason to Paal | 1,955.77 mi (3,147.50 km) |
| Sason to Peer | 1,945.28 mi (3,130.63 km) |
| Sason to Pepinster | 1,921.37 mi (3,092.15 km) |
| Sason to Peruwelz | 2,016.98 mi (3,246.02 km) |
| Sason to Perwez | 1,965.20 mi (3,162.68 km) |
| Sason to Philippeville | 1,971.22 mi (3,172.37 km) |
