| Port Charlotte to Orbetello | 5,143.86 mi (8,278.24 km) |
| Port Charlotte to Oria | 5,501.74 mi (8,854.19 km) |
| Port Charlotte to Oristano | 5,083.59 mi (8,181.25 km) |
| Port Charlotte to Orta Nova | 5,386.37 mi (8,668.52 km) |
| Port Charlotte to Orte | 5,198.40 mi (8,366.02 km) |
| Port Charlotte to Ortona | 5,295.43 mi (8,522.17 km) |
| Port Charlotte to Orvieto | 5,178.49 mi (8,333.98 km) |
| Port Charlotte to Orzinuovi | 5,008.83 mi (8,060.93 km) |
| Port Charlotte to Osimo | 5,221.12 mi (8,402.57 km) |
| Port Charlotte to Ospitaletto | 5,011.32 mi (8,064.94 km) |
| Port Charlotte to Ostuni | 5,492.14 mi (8,838.75 km) |
| Port Charlotte to Ottaviano | 5,342.35 mi (8,597.68 km) |
| Port Charlotte to Ovada | 4,968.59 mi (7,996.18 km) |
| Port Charlotte to Ozieri | 5,086.36 mi (8,185.71 km) |
| Port Charlotte to Paceco | 5,331.30 mi (8,579.90 km) |
