| Charleston to Opwijk | 4,259.38 mi (6,854.81 km) |
| Charleston to Ostend | 4,201.69 mi (6,761.97 km) |
| Charleston to Oud-Heverlee | 4,282.27 mi (6,891.65 km) |
| Charleston to Oud-Turnhout | 4,284.67 mi (6,895.50 km) |
| Charleston to Oudenaarde | 4,237.71 mi (6,819.93 km) |
| Charleston to Oudenburg | 4,205.89 mi (6,768.73 km) |
| Charleston to Oupeye | 4,325.43 mi (6,961.11 km) |
| Charleston to Overijse | 4,277.85 mi (6,884.54 km) |
| Charleston to Overpelt | 4,304.63 mi (6,927.63 km) |
| Charleston to Paal | 4,298.58 mi (6,917.90 km) |
| Charleston to Peer | 4,308.02 mi (6,933.09 km) |
| Charleston to Pepinster | 4,335.86 mi (6,977.89 km) |
| Charleston to Peruwelz | 4,244.11 mi (6,830.23 km) |
| Charleston to Perwez | 4,293.05 mi (6,909.00 km) |
| Charleston to Philippeville | 4,291.45 mi (6,906.42 km) |
