| Westminster to Octeville | 145.02 mi (233.39 km) |
| Westminster to Oignies | 153.42 mi (246.91 km) |
| Westminster to Oissel | 158.24 mi (254.66 km) |
| Westminster to Olivet | 266.84 mi (429.43 km) |
| Westminster to Ollioules | 641.19 mi (1,031.89 km) |
| Westminster to Olonne-sur-Mer | 350.53 mi (564.12 km) |
| Westminster to Oloron-Sainte-Marie | 573.93 mi (923.65 km) |
| Westminster to Onet Village | 508.42 mi (818.22 km) |
| Westminster to Onnaing | 179.61 mi (289.05 km) |
| Westminster to Orange | 557.34 mi (896.96 km) |
| Westminster to Orchies | 163.00 mi (262.32 km) |
| Westminster to Orleans | 264.45 mi (425.59 km) |
| Westminster to Orly | 220.58 mi (354.98 km) |
| Westminster to Ormesson-sur-Marne | 221.43 mi (356.36 km) |
| Westminster to Orsay | 218.92 mi (352.31 km) |
