| Southwater to Octeville | 112.05 mi (180.33 km) |
| Southwater to Oignies | 151.21 mi (243.35 km) |
| Southwater to Oissel | 132.61 mi (213.41 km) |
| Southwater to Olivet | 240.62 mi (387.24 km) |
| Southwater to Ollioules | 617.41 mi (993.63 km) |
| Southwater to Olonne-sur-Mer | 316.72 mi (509.72 km) |
| Southwater to Oloron-Sainte-Marie | 541.10 mi (870.82 km) |
| Southwater to Onet Village | 479.90 mi (772.33 km) |
| Southwater to Onnaing | 178.34 mi (287.02 km) |
| Southwater to Orange | 532.80 mi (857.46 km) |
| Southwater to Orchies | 161.73 mi (260.28 km) |
| Southwater to Orleans | 238.35 mi (383.59 km) |
| Southwater to Orly | 199.35 mi (320.83 km) |
| Southwater to Ormesson-sur-Marne | 201.12 mi (323.66 km) |
| Southwater to Orsay | 196.50 mi (316.23 km) |
