| Southwick to Octeville | 104.06 mi (167.48 km) |
| Southwick to Oignies | 143.85 mi (231.50 km) |
| Southwick to Oissel | 118.89 mi (191.33 km) |
| Southwick to Olivet | 226.79 mi (364.98 km) |
| Southwick to Ollioules | 603.72 mi (971.60 km) |
| Southwick to Olonne-sur-Mer | 305.20 mi (491.18 km) |
| Southwick to Oloron-Sainte-Marie | 528.28 mi (850.18 km) |
| Southwick to Onet Village | 466.04 mi (750.02 km) |
| Southwick to Onnaing | 171.04 mi (275.26 km) |
| Southwick to Orange | 519.05 mi (835.33 km) |
| Southwick to Orchies | 154.59 mi (248.79 km) |
| Southwick to Orleans | 224.52 mi (361.33 km) |
| Southwick to Orly | 186.19 mi (299.64 km) |
| Southwick to Ormesson-sur-Marne | 188.12 mi (302.75 km) |
| Southwick to Orsay | 183.13 mi (294.72 km) |
