| Reston to Opwijk | 3,863.18 mi (6,217.19 km) |
| Reston to Ostend | 3,805.58 mi (6,124.49 km) |
| Reston to Oud-Heverlee | 3,886.16 mi (6,254.18 km) |
| Reston to Oud-Turnhout | 3,886.34 mi (6,254.47 km) |
| Reston to Oudenaarde | 3,842.52 mi (6,183.94 km) |
| Reston to Oudenburg | 3,809.89 mi (6,131.42 km) |
| Reston to Oupeye | 3,928.89 mi (6,322.94 km) |
| Reston to Overijse | 3,882.07 mi (6,247.59 km) |
| Reston to Overpelt | 3,906.30 mi (6,286.59 km) |
| Reston to Paal | 3,901.18 mi (6,278.35 km) |
| Reston to Peer | 3,909.99 mi (6,292.52 km) |
| Reston to Pepinster | 3,939.71 mi (6,340.34 km) |
| Reston to Peruwelz | 3,850.31 mi (6,196.47 km) |
| Reston to Perwez | 3,897.64 mi (6,272.64 km) |
| Reston to Philippeville | 3,898.02 mi (6,273.26 km) |
