| Cockeysville to Octeville | 3,601.66 mi (5,796.30 km) |
| Cockeysville to Oignies | 3,774.43 mi (6,074.36 km) |
| Cockeysville to Oissel | 3,723.68 mi (5,992.68 km) |
| Cockeysville to Olivet | 3,795.85 mi (6,108.83 km) |
| Cockeysville to Ollioules | 4,106.64 mi (6,609.00 km) |
| Cockeysville to Olonne-sur-Mer | 3,670.04 mi (5,906.35 km) |
| Cockeysville to Oloron-Sainte-Marie | 3,812.03 mi (6,134.87 km) |
| Cockeysville to Onet Village | 3,923.57 mi (6,314.38 km) |
| Cockeysville to Onnaing | 3,801.24 mi (6,117.50 km) |
| Cockeysville to Orange | 4,029.25 mi (6,484.45 km) |
| Cockeysville to Orchies | 3,784.55 mi (6,090.64 km) |
| Cockeysville to Orleans | 3,795.19 mi (6,107.77 km) |
| Cockeysville to Orly | 3,793.69 mi (6,105.35 km) |
| Cockeysville to Ormesson-sur-Marne | 3,798.73 mi (6,113.47 km) |
| Cockeysville to Orsay | 3,786.21 mi (6,093.32 km) |
