| Cerveteri to Octeville | 843.77 mi (1,357.91 km) |
| Cerveteri to Oignies | 728.11 mi (1,171.78 km) |
| Cerveteri to Oissel | 733.33 mi (1,180.19 km) |
| Cerveteri to Olivet | 641.76 mi (1,032.81 km) |
| Cerveteri to Ollioules | 327.69 mi (527.37 km) |
| Cerveteri to Olonne-sur-Mer | 753.17 mi (1,212.12 km) |
| Cerveteri to Oloron-Sainte-Marie | 650.89 mi (1,047.50 km) |
| Cerveteri to Onet Village | 505.70 mi (813.85 km) |
| Cerveteri to Onnaing | 706.96 mi (1,137.75 km) |
| Cerveteri to Orange | 396.35 mi (637.86 km) |
| Cerveteri to Orchies | 721.38 mi (1,160.95 km) |
| Cerveteri to Orleans | 642.99 mi (1,034.79 km) |
| Cerveteri to Orly | 661.67 mi (1,064.85 km) |
| Cerveteri to Ormesson-sur-Marne | 658.62 mi (1,059.94 km) |
| Cerveteri to Orsay | 666.70 mi (1,072.95 km) |
