| Oloron-Sainte-Marie to Opwijk | 582.09 mi (936.78 km) |
| Oloron-Sainte-Marie to Ostend | 578.90 mi (931.66 km) |
| Oloron-Sainte-Marie to Oud-Heverlee | 582.98 mi (938.22 km) |
| Oloron-Sainte-Marie to Oud-Turnhout | 618.97 mi (996.14 km) |
| Oloron-Sainte-Marie to Oudenaarde | 564.62 mi (908.67 km) |
| Oloron-Sainte-Marie to Oudenburg | 577.20 mi (928.92 km) |
| Oloron-Sainte-Marie to Oupeye | 596.52 mi (960.00 km) |
| Oloron-Sainte-Marie to Overijse | 577.26 mi (929.02 km) |
| Oloron-Sainte-Marie to Overpelt | 621.74 mi (1,000.60 km) |
| Oloron-Sainte-Marie to Paal | 605.89 mi (975.08 km) |
| Oloron-Sainte-Marie to Peer | 617.48 mi (993.74 km) |
| Oloron-Sainte-Marie to Pepinster | 592.36 mi (953.31 km) |
| Oloron-Sainte-Marie to Peruwelz | 543.06 mi (873.98 km) |
| Oloron-Sainte-Marie to Perwez | 573.23 mi (922.53 km) |
| Oloron-Sainte-Marie to Philippeville | 541.92 mi (872.13 km) |
