| Manassas Park to Oerlinghausen | 4,026.49 mi (6,480.01 km) |
| Manassas Park to Oestrich-Winkel | 4,055.77 mi (6,527.13 km) |
| Manassas Park to Offenburg | 4,097.73 mi (6,594.67 km) |
| Manassas Park to Oftersheim | 4,097.79 mi (6,594.75 km) |
| Manassas Park to Ohrdruf | 4,140.35 mi (6,663.25 km) |
| Manassas Park to Ohringen | 4,140.09 mi (6,662.82 km) |
| Manassas Park to Olbernhau | 4,246.98 mi (6,834.85 km) |
| Manassas Park to Olching | 4,245.12 mi (6,831.86 km) |
| Manassas Park to Oldenburg | 3,976.75 mi (6,399.96 km) |
| Manassas Park to Oldenburg in Holstein | 4,045.10 mi (6,509.96 km) |
| Manassas Park to Olfen | 3,983.16 mi (6,410.27 km) |
| Manassas Park to Olpe | 4,020.27 mi (6,470.00 km) |
| Manassas Park to Olsberg | 4,036.63 mi (6,496.32 km) |
| Manassas Park to Oranienburg | 4,178.01 mi (6,723.85 km) |
| Manassas Park to Ortenberg | 4,087.86 mi (6,578.78 km) |
