| Altus to Opwijk | 4,925.24 mi (7,926.40 km) |
| Altus to Ostend | 4,869.22 mi (7,836.25 km) |
| Altus to Oud-Heverlee | 4,947.95 mi (7,962.96 km) |
| Altus to Oud-Turnhout | 4,941.43 mi (7,952.46 km) |
| Altus to Oudenaarde | 4,908.03 mi (7,898.71 km) |
| Altus to Oudenburg | 4,873.73 mi (7,843.51 km) |
| Altus to Oupeye | 4,988.41 mi (8,028.08 km) |
| Altus to Overijse | 4,944.91 mi (7,958.07 km) |
| Altus to Overpelt | 4,960.91 mi (7,983.81 km) |
| Altus to Paal | 4,958.74 mi (7,980.31 km) |
| Altus to Peer | 4,965.41 mi (7,991.06 km) |
| Altus to Pepinster | 5,000.16 mi (8,046.98 km) |
| Altus to Peruwelz | 4,919.63 mi (7,917.39 km) |
| Altus to Perwez | 4,961.23 mi (7,984.33 km) |
| Altus to Philippeville | 4,967.33 mi (7,994.15 km) |
