| Saint-Gaudens to Opwijk | 566.73 mi (912.06 km) |
| Saint-Gaudens to Ostend | 570.22 mi (917.67 km) |
| Saint-Gaudens to Oud-Heverlee | 565.00 mi (909.28 km) |
| Saint-Gaudens to Oud-Turnhout | 601.10 mi (967.38 km) |
| Saint-Gaudens to Oudenaarde | 551.72 mi (887.91 km) |
| Saint-Gaudens to Oudenburg | 568.03 mi (914.16 km) |
| Saint-Gaudens to Oupeye | 573.86 mi (923.54 km) |
| Saint-Gaudens to Overijse | 559.73 mi (900.80 km) |
| Saint-Gaudens to Overpelt | 601.76 mi (968.44 km) |
| Saint-Gaudens to Paal | 586.35 mi (943.63 km) |
| Saint-Gaudens to Peer | 597.08 mi (960.90 km) |
| Saint-Gaudens to Pepinster | 568.46 mi (914.85 km) |
| Saint-Gaudens to Peruwelz | 529.34 mi (851.89 km) |
| Saint-Gaudens to Perwez | 553.89 mi (891.40 km) |
| Saint-Gaudens to Philippeville | 522.35 mi (840.64 km) |
