| Clearwater to Octeville | 4,389.49 mi (7,064.21 km) |
| Clearwater to Oignies | 4,574.41 mi (7,361.81 km) |
| Clearwater to Oissel | 4,513.36 mi (7,263.56 km) |
| Clearwater to Olivet | 4,576.30 mi (7,364.85 km) |
| Clearwater to Ollioules | 4,860.04 mi (7,821.49 km) |
| Clearwater to Olonne-sur-Mer | 4,433.93 mi (7,135.72 km) |
| Clearwater to Oloron-Sainte-Marie | 4,550.38 mi (7,323.14 km) |
| Clearwater to Onet Village | 4,678.88 mi (7,529.93 km) |
| Clearwater to Onnaing | 4,601.54 mi (7,405.47 km) |
| Clearwater to Orange | 4,787.80 mi (7,705.22 km) |
| Clearwater to Orchies | 4,584.91 mi (7,378.70 km) |
| Clearwater to Orleans | 4,575.94 mi (7,364.26 km) |
| Clearwater to Orly | 4,581.20 mi (7,372.72 km) |
| Clearwater to Ormesson-sur-Marne | 4,586.76 mi (7,381.68 km) |
| Clearwater to Orsay | 4,573.07 mi (7,359.65 km) |
