| Clemmons to Octeville | 3,911.06 mi (6,294.24 km) |
| Clemmons to Oignies | 4,085.74 mi (6,575.36 km) |
| Clemmons to Oissel | 4,033.46 mi (6,491.23 km) |
| Clemmons to Olivet | 4,104.21 mi (6,605.09 km) |
| Clemmons to Ollioules | 4,410.43 mi (7,097.90 km) |
| Clemmons to Olonne-sur-Mer | 3,975.33 mi (6,397.67 km) |
| Clemmons to Oloron-Sainte-Marie | 4,112.41 mi (6,618.28 km) |
| Clemmons to Onet Village | 4,227.52 mi (6,803.53 km) |
| Clemmons to Onnaing | 4,112.60 mi (6,618.59 km) |
| Clemmons to Orange | 4,333.93 mi (6,974.79 km) |
| Clemmons to Orchies | 4,095.91 mi (6,591.73 km) |
| Clemmons to Orleans | 4,103.60 mi (6,604.11 km) |
| Clemmons to Orly | 4,103.19 mi (6,603.44 km) |
| Clemmons to Ormesson-sur-Marne | 4,108.31 mi (6,611.69 km) |
| Clemmons to Orsay | 4,095.60 mi (6,591.24 km) |
