| Fontenay-aux-Roses to Opwijk | 172.46 mi (277.55 km) |
| Fontenay-aux-Roses to Ostend | 170.66 mi (274.65 km) |
| Fontenay-aux-Roses to Oud-Heverlee | 176.57 mi (284.17 km) |
| Fontenay-aux-Roses to Oud-Turnhout | 211.59 mi (340.52 km) |
| Fontenay-aux-Roses to Oudenaarde | 153.91 mi (247.69 km) |
| Fontenay-aux-Roses to Oudenburg | 168.40 mi (271.01 km) |
| Fontenay-aux-Roses to Oupeye | 199.98 mi (321.83 km) |
| Fontenay-aux-Roses to Overijse | 170.29 mi (274.06 km) |
| Fontenay-aux-Roses to Overpelt | 217.73 mi (350.40 km) |
| Fontenay-aux-Roses to Paal | 201.54 mi (324.34 km) |
| Fontenay-aux-Roses to Peer | 214.45 mi (345.12 km) |
| Fontenay-aux-Roses to Pepinster | 199.86 mi (321.65 km) |
| Fontenay-aux-Roses to Peruwelz | 132.65 mi (213.48 km) |
| Fontenay-aux-Roses to Perwez | 169.72 mi (273.14 km) |
| Fontenay-aux-Roses to Philippeville | 140.69 mi (226.42 km) |
