| Manassas to Opwijk | 3,877.95 mi (6,240.96 km) |
| Manassas to Ostend | 3,820.35 mi (6,148.25 km) |
| Manassas to Oud-Heverlee | 3,900.93 mi (6,277.94 km) |
| Manassas to Oud-Turnhout | 3,901.17 mi (6,278.33 km) |
| Manassas to Oudenaarde | 3,857.26 mi (6,207.67 km) |
| Manassas to Oudenburg | 3,824.65 mi (6,155.18 km) |
| Manassas to Oupeye | 3,943.67 mi (6,346.73 km) |
| Manassas to Overijse | 3,896.83 mi (6,271.34 km) |
| Manassas to Overpelt | 3,921.13 mi (6,310.45 km) |
| Manassas to Paal | 3,915.99 mi (6,302.17 km) |
| Manassas to Peer | 3,924.81 mi (6,316.37 km) |
| Manassas to Pepinster | 3,954.48 mi (6,364.12 km) |
| Manassas to Peruwelz | 3,865.01 mi (6,220.13 km) |
| Manassas to Perwez | 3,912.39 mi (6,296.38 km) |
| Manassas to Philippeville | 3,912.71 mi (6,296.90 km) |
