| Harrisonburg to Orbetello | 4,508.50 mi (7,255.73 km) |
| Harrisonburg to Oria | 4,860.91 mi (7,822.87 km) |
| Harrisonburg to Oristano | 4,479.01 mi (7,208.27 km) |
| Harrisonburg to Orta Nova | 4,745.57 mi (7,637.26 km) |
| Harrisonburg to Orte | 4,559.21 mi (7,337.34 km) |
| Harrisonburg to Ortona | 4,650.78 mi (7,484.71 km) |
| Harrisonburg to Orvieto | 4,538.02 mi (7,303.24 km) |
| Harrisonburg to Orzinuovi | 4,352.49 mi (7,004.65 km) |
| Harrisonburg to Osimo | 4,570.24 mi (7,355.10 km) |
| Harrisonburg to Ospitaletto | 4,353.33 mi (7,006.01 km) |
| Harrisonburg to Ostuni | 4,849.67 mi (7,804.79 km) |
| Harrisonburg to Ottaviano | 4,709.59 mi (7,579.35 km) |
| Harrisonburg to Ovada | 4,322.08 mi (6,955.71 km) |
| Harrisonburg to Ozieri | 4,474.25 mi (7,200.61 km) |
| Harrisonburg to Paceco | 4,729.74 mi (7,611.78 km) |
