| Chateaubriant to Oria | 1,062.81 mi (1,710.42 km) |
| Chateaubriant to Oristano | 732.48 mi (1,178.81 km) |
| Chateaubriant to Orta Nova | 947.51 mi (1,524.86 km) |
| Chateaubriant to Orte | 761.73 mi (1,225.89 km) |
| Chateaubriant to Ortona | 852.80 mi (1,372.45 km) |
| Chateaubriant to Orvieto | 740.28 mi (1,191.37 km) |
| Chateaubriant to Orzinuovi | 560.05 mi (901.31 km) |
| Chateaubriant to Osimo | 774.03 mi (1,245.68 km) |
| Chateaubriant to Ospitaletto | 562.74 mi (905.64 km) |
| Chateaubriant to Ostuni | 1,051.63 mi (1,692.43 km) |
| Chateaubriant to Ottaviano | 913.94 mi (1,470.84 km) |
| Chateaubriant to Ovada | 524.01 mi (843.32 km) |
| Chateaubriant to Ozieri | 711.29 mi (1,144.71 km) |
| Chateaubriant to Paceco | 971.85 mi (1,564.04 km) |
| Chateaubriant to Pachino | 1,130.78 mi (1,819.82 km) |
