| Sidcup to Octeville | 146.06 mi (235.05 km) |
| Sidcup to Oignies | 142.16 mi (228.78 km) |
| Sidcup to Oissel | 150.46 mi (242.14 km) |
| Sidcup to Olivet | 258.93 mi (416.71 km) |
| Sidcup to Ollioules | 632.24 mi (1,017.49 km) |
| Sidcup to Olonne-sur-Mer | 348.38 mi (560.67 km) |
| Sidcup to Oloron-Sainte-Marie | 569.74 mi (916.92 km) |
| Sidcup to Onet Village | 501.23 mi (806.65 km) |
| Sidcup to Onnaing | 168.34 mi (270.91 km) |
| Sidcup to Orange | 548.65 mi (882.96 km) |
| Sidcup to Orchies | 151.72 mi (244.18 km) |
| Sidcup to Orleans | 256.51 mi (412.81 km) |
| Sidcup to Orly | 211.30 mi (340.06 km) |
| Sidcup to Ormesson-sur-Marne | 211.95 mi (341.11 km) |
| Sidcup to Orsay | 209.94 mi (337.87 km) |
