| Chapel Hill to Octeville | 3,858.32 mi (6,209.36 km) |
| Chapel Hill to Oignies | 4,035.01 mi (6,493.72 km) |
| Chapel Hill to Oissel | 3,981.06 mi (6,406.90 km) |
| Chapel Hill to Olivet | 4,050.49 mi (6,518.63 km) |
| Chapel Hill to Ollioules | 4,353.37 mi (7,006.08 km) |
| Chapel Hill to Olonne-sur-Mer | 3,919.34 mi (6,307.57 km) |
| Chapel Hill to Oloron-Sainte-Marie | 4,053.56 mi (6,523.57 km) |
| Chapel Hill to Onet Village | 4,170.61 mi (6,711.94 km) |
| Chapel Hill to Onnaing | 4,061.94 mi (6,537.07 km) |
| Chapel Hill to Orange | 4,277.46 mi (6,883.90 km) |
| Chapel Hill to Orchies | 4,045.25 mi (6,510.21 km) |
| Chapel Hill to Orleans | 4,049.92 mi (6,517.71 km) |
| Chapel Hill to Orly | 4,050.49 mi (6,518.63 km) |
| Chapel Hill to Ormesson-sur-Marne | 4,055.70 mi (6,527.01 km) |
| Chapel Hill to Orsay | 4,042.81 mi (6,506.27 km) |
