| Civita Castellana to Oria | 297.74 mi (479.16 km) |
| Civita Castellana to Oristano | 258.41 mi (415.87 km) |
| Civita Castellana to Orta Nova | 182.61 mi (293.88 km) |
| Civita Castellana to Orte | 11.41 mi (18.36 km) |
| Civita Castellana to Ortona | 101.72 mi (163.71 km) |
| Civita Castellana to Orvieto | 32.92 mi (52.99 km) |
| Civita Castellana to Orzinuovi | 247.40 mi (398.15 km) |
| Civita Castellana to Osimo | 98.39 mi (158.34 km) |
| Civita Castellana to Ospitaletto | 253.41 mi (407.83 km) |
| Civita Castellana to Ostuni | 288.54 mi (464.37 km) |
| Civita Castellana to Ottaviano | 146.29 mi (235.43 km) |
| Civita Castellana to Ovada | 248.60 mi (400.09 km) |
| Civita Castellana to Ozieri | 212.37 mi (341.78 km) |
| Civita Castellana to Paceco | 298.08 mi (479.71 km) |
| Civita Castellana to Pachino | 411.25 mi (661.84 km) |
