| Seagoville to Orbetello | 5,523.71 mi (8,889.56 km) |
| Seagoville to Oria | 5,868.86 mi (9,445.01 km) |
| Seagoville to Oristano | 5,512.05 mi (8,870.79 km) |
| Seagoville to Orta Nova | 5,754.73 mi (9,261.34 km) |
| Seagoville to Orte | 5,571.38 mi (8,966.27 km) |
| Seagoville to Ortona | 5,658.22 mi (9,106.02 km) |
| Seagoville to Orvieto | 5,549.54 mi (8,931.12 km) |
| Seagoville to Orzinuovi | 5,354.58 mi (8,617.36 km) |
| Seagoville to Osimo | 5,574.01 mi (8,970.50 km) |
| Seagoville to Ospitaletto | 5,354.14 mi (8,616.66 km) |
| Seagoville to Ostuni | 5,856.57 mi (9,425.25 km) |
| Seagoville to Ottaviano | 5,724.51 mi (9,212.71 km) |
| Seagoville to Ovada | 5,331.70 mi (8,580.54 km) |
| Seagoville to Ozieri | 5,503.47 mi (8,856.97 km) |
| Seagoville to Paceco | 5,762.31 mi (9,273.54 km) |
