| Twickenham to Octeville | 138.34 mi (222.63 km) |
| Twickenham to Oignies | 159.96 mi (257.43 km) |
| Twickenham to Oissel | 158.59 mi (255.23 km) |
| Twickenham to Olivet | 267.13 mi (429.90 km) |
| Twickenham to Ollioules | 642.57 mi (1,034.12 km) |
| Twickenham to Olonne-sur-Mer | 345.61 mi (556.21 km) |
| Twickenham to Oloron-Sainte-Marie | 570.49 mi (918.12 km) |
| Twickenham to Onet Village | 507.78 mi (817.19 km) |
| Twickenham to Onnaing | 186.40 mi (299.98 km) |
| Twickenham to Orange | 558.42 mi (898.69 km) |
| Twickenham to Orchies | 169.74 mi (273.17 km) |
| Twickenham to Orleans | 264.79 mi (426.13 km) |
| Twickenham to Orly | 222.61 mi (358.26 km) |
| Twickenham to Ormesson-sur-Marne | 223.76 mi (360.11 km) |
| Twickenham to Orsay | 220.55 mi (354.95 km) |
