| Morsang-sur-Orge to Opwijk | 179.07 mi (288.18 km) |
| Morsang-sur-Orge to Ostend | 178.98 mi (288.04 km) |
| Morsang-sur-Orge to Oud-Heverlee | 182.31 mi (293.40 km) |
| Morsang-sur-Orge to Oud-Turnhout | 217.62 mi (350.23 km) |
| Morsang-sur-Orge to Oudenaarde | 161.21 mi (259.44 km) |
| Morsang-sur-Orge to Oudenburg | 176.63 mi (284.26 km) |
| Morsang-sur-Orge to Oupeye | 204.21 mi (328.64 km) |
| Morsang-sur-Orge to Overijse | 176.14 mi (283.47 km) |
| Morsang-sur-Orge to Overpelt | 223.13 mi (359.09 km) |
| Morsang-sur-Orge to Paal | 206.95 mi (333.05 km) |
| Morsang-sur-Orge to Peer | 219.68 mi (353.54 km) |
| Morsang-sur-Orge to Pepinster | 203.59 mi (327.64 km) |
| Morsang-sur-Orge to Peruwelz | 139.62 mi (224.70 km) |
| Morsang-sur-Orge to Perwez | 174.86 mi (281.41 km) |
| Morsang-sur-Orge to Philippeville | 145.26 mi (233.77 km) |
