| North Charleston to Octeville | 4,039.77 mi (6,501.38 km) |
| North Charleston to Oignies | 4,220.48 mi (6,792.20 km) |
| North Charleston to Oissel | 4,163.13 mi (6,699.91 km) |
| North Charleston to Olivet | 4,229.57 mi (6,806.83 km) |
| North Charleston to Ollioules | 4,523.96 mi (7,280.60 km) |
| North Charleston to Olonne-sur-Mer | 4,093.13 mi (6,587.26 km) |
| North Charleston to Oloron-Sainte-Marie | 4,219.45 mi (6,790.54 km) |
| North Charleston to Onet Village | 4,341.75 mi (6,987.37 km) |
| North Charleston to Onnaing | 4,247.52 mi (6,835.72 km) |
| North Charleston to Orange | 4,449.63 mi (7,160.99 km) |
| North Charleston to Orchies | 4,230.85 mi (6,808.89 km) |
| North Charleston to Orleans | 4,229.09 mi (6,806.06 km) |
| North Charleston to Orly | 4,231.85 mi (6,810.51 km) |
| North Charleston to Ormesson-sur-Marne | 4,237.23 mi (6,819.16 km) |
| North Charleston to Orsay | 4,223.96 mi (6,797.80 km) |
