| Ros Comain to Oria | 1,502.43 mi (2,417.92 km) |
| Ros Comain to Oristano | 1,230.51 mi (1,980.31 km) |
| Ros Comain to Orta Nova | 1,391.31 mi (2,239.09 km) |
| Ros Comain to Orte | 1,216.47 mi (1,957.72 km) |
| Ros Comain to Ortona | 1,293.77 mi (2,082.13 km) |
| Ros Comain to Orvieto | 1,193.89 mi (1,921.37 km) |
| Ros Comain to Orzinuovi | 987.43 mi (1,589.12 km) |
| Ros Comain to Osimo | 1,206.02 mi (1,940.90 km) |
| Ros Comain to Ospitaletto | 985.43 mi (1,585.90 km) |
| Ros Comain to Ostuni | 1,489.07 mi (2,396.43 km) |
| Ros Comain to Ottaviano | 1,371.46 mi (2,207.14 km) |
| Ros Comain to Ovada | 978.08 mi (1,574.07 km) |
| Ros Comain to Ozieri | 1,204.45 mi (1,938.37 km) |
| Ros Comain to Paceco | 1,461.09 mi (2,351.39 km) |
| Ros Comain to Pachino | 1,614.13 mi (2,597.69 km) |
