| Charlotte to Oerlinghausen | 4,332.63 mi (6,972.70 km) |
| Charlotte to Oestrich-Winkel | 4,360.01 mi (7,016.76 km) |
| Charlotte to Offenburg | 4,400.33 mi (7,081.64 km) |
| Charlotte to Oftersheim | 4,401.57 mi (7,083.64 km) |
| Charlotte to Ohrdruf | 4,446.05 mi (7,155.23 km) |
| Charlotte to Ohringen | 4,443.98 mi (7,151.89 km) |
| Charlotte to Olbernhau | 4,553.18 mi (7,327.64 km) |
| Charlotte to Olching | 4,548.60 mi (7,320.26 km) |
| Charlotte to Oldenburg | 4,283.66 mi (6,893.89 km) |
| Charlotte to Oldenburg in Holstein | 4,353.06 mi (7,005.57 km) |
| Charlotte to Olfen | 4,288.82 mi (6,902.19 km) |
| Charlotte to Olpe | 4,325.43 mi (6,961.10 km) |
| Charlotte to Olsberg | 4,342.23 mi (6,988.14 km) |
| Charlotte to Oranienburg | 4,485.52 mi (7,218.74 km) |
| Charlotte to Ortenberg | 4,392.73 mi (7,069.42 km) |
