| Front Royal to Opwijk | 3,898.06 mi (6,273.32 km) |
| Front Royal to Ostend | 3,840.49 mi (6,180.67 km) |
| Front Royal to Oud-Heverlee | 3,921.05 mi (6,310.32 km) |
| Front Royal to Oud-Turnhout | 3,920.91 mi (6,310.10 km) |
| Front Royal to Oudenaarde | 3,877.55 mi (6,240.31 km) |
| Front Royal to Oudenburg | 3,844.81 mi (6,187.62 km) |
| Front Royal to Oupeye | 3,963.70 mi (6,378.96 km) |
| Front Royal to Overijse | 3,917.00 mi (6,303.80 km) |
| Front Royal to Overpelt | 3,940.87 mi (6,342.21 km) |
| Front Royal to Paal | 3,935.88 mi (6,334.18 km) |
| Front Royal to Peer | 3,944.59 mi (6,348.21 km) |
| Front Royal to Pepinster | 3,974.57 mi (6,396.45 km) |
| Front Royal to Peruwelz | 3,885.52 mi (6,253.14 km) |
| Front Royal to Perwez | 3,932.62 mi (6,328.93 km) |
| Front Royal to Philippeville | 3,933.27 mi (6,329.98 km) |
