| Charlotte to Orbetello | 4,728.35 mi (7,609.54 km) |
| Charlotte to Oria | 5,082.56 mi (8,179.60 km) |
| Charlotte to Oristano | 4,691.55 mi (7,550.32 km) |
| Charlotte to Orta Nova | 4,967.05 mi (7,993.69 km) |
| Charlotte to Orte | 4,780.03 mi (7,692.71 km) |
| Charlotte to Ortona | 4,872.99 mi (7,842.32 km) |
| Charlotte to Orvieto | 4,759.10 mi (7,659.03 km) |
| Charlotte to Orzinuovi | 4,576.88 mi (7,365.78 km) |
| Charlotte to Osimo | 4,793.73 mi (7,714.77 km) |
| Charlotte to Ospitaletto | 4,578.10 mi (7,367.74 km) |
| Charlotte to Ostuni | 5,071.68 mi (8,162.08 km) |
| Charlotte to Ottaviano | 4,929.17 mi (7,932.74 km) |
| Charlotte to Ovada | 4,544.19 mi (7,313.17 km) |
| Charlotte to Ozieri | 4,688.59 mi (7,545.55 km) |
| Charlotte to Paceco | 4,942.05 mi (7,953.46 km) |
