| Saint-Michel-sur-Orge to Opwijk | 181.76 mi (292.52 km) |
| Saint-Michel-sur-Orge to Ostend | 181.26 mi (291.72 km) |
| Saint-Michel-sur-Orge to Oud-Heverlee | 185.09 mi (297.88 km) |
| Saint-Michel-sur-Orge to Oud-Turnhout | 220.38 mi (354.67 km) |
| Saint-Michel-sur-Orge to Oudenaarde | 163.79 mi (263.59 km) |
| Saint-Michel-sur-Orge to Oudenburg | 178.95 mi (287.99 km) |
| Saint-Michel-sur-Orge to Oupeye | 207.04 mi (333.19 km) |
| Saint-Michel-sur-Orge to Overijse | 178.91 mi (287.93 km) |
| Saint-Michel-sur-Orge to Overpelt | 225.93 mi (363.61 km) |
| Saint-Michel-sur-Orge to Paal | 209.75 mi (337.56 km) |
| Saint-Michel-sur-Orge to Peer | 222.49 mi (358.06 km) |
| Saint-Michel-sur-Orge to Pepinster | 206.41 mi (332.18 km) |
| Saint-Michel-sur-Orge to Peruwelz | 142.26 mi (228.95 km) |
| Saint-Michel-sur-Orge to Perwez | 177.68 mi (285.94 km) |
| Saint-Michel-sur-Orge to Philippeville | 148.08 mi (238.32 km) |
