| Port Wentworth to Orbetello | 4,873.36 mi (7,842.92 km) |
| Port Wentworth to Oria | 5,229.44 mi (8,415.97 km) |
| Port Wentworth to Oristano | 4,827.43 mi (7,769.00 km) |
| Port Wentworth to Orta Nova | 5,113.84 mi (8,229.93 km) |
| Port Wentworth to Orte | 4,926.22 mi (7,927.98 km) |
| Port Wentworth to Ortona | 5,020.87 mi (8,080.31 km) |
| Port Wentworth to Orvieto | 4,905.66 mi (7,894.89 km) |
| Port Wentworth to Orzinuovi | 4,728.10 mi (7,609.14 km) |
| Port Wentworth to Osimo | 4,943.44 mi (7,955.69 km) |
| Port Wentworth to Ospitaletto | 4,729.81 mi (7,611.90 km) |
| Port Wentworth to Ostuni | 5,219.04 mi (8,399.24 km) |
| Port Wentworth to Ottaviano | 5,073.54 mi (8,165.08 km) |
| Port Wentworth to Ovada | 4,692.42 mi (7,551.73 km) |
| Port Wentworth to Ozieri | 4,826.68 mi (7,767.79 km) |
| Port Wentworth to Paceco | 5,077.22 mi (8,170.99 km) |
