| Chatellerault to Oria | 956.42 mi (1,539.21 km) |
| Chatellerault to Oristano | 624.95 mi (1,005.75 km) |
| Chatellerault to Orta Nova | 840.94 mi (1,353.35 km) |
| Chatellerault to Orte | 654.40 mi (1,053.15 km) |
| Chatellerault to Ortona | 747.02 mi (1,202.21 km) |
| Chatellerault to Orvieto | 633.20 mi (1,019.03 km) |
| Chatellerault to Orzinuovi | 459.91 mi (740.15 km) |
| Chatellerault to Osimo | 670.21 mi (1,078.60 km) |
| Chatellerault to Ospitaletto | 463.69 mi (746.24 km) |
| Chatellerault to Ostuni | 945.56 mi (1,521.73 km) |
| Chatellerault to Ottaviano | 805.83 mi (1,296.85 km) |
| Chatellerault to Ovada | 418.44 mi (673.41 km) |
| Chatellerault to Ozieri | 602.58 mi (969.77 km) |
| Chatellerault to Paceco | 862.83 mi (1,388.59 km) |
| Chatellerault to Pachino | 1,021.43 mi (1,643.83 km) |
