| Cadaval to Orbetello | 1,081.91 mi (1,741.16 km) |
| Cadaval to Oria | 1,414.99 mi (2,277.20 km) |
| Cadaval to Oristano | 941.87 mi (1,515.79 km) |
| Cadaval to Orta Nova | 1,311.28 mi (2,110.30 km) |
| Cadaval to Orte | 1,141.67 mi (1,837.33 km) |
| Cadaval to Ortona | 1,243.86 mi (2,001.80 km) |
| Cadaval to Orvieto | 1,129.10 mi (1,817.12 km) |
| Cadaval to Orzinuovi | 1,058.29 mi (1,703.16 km) |
| Cadaval to Osimo | 1,203.34 mi (1,936.58 km) |
| Cadaval to Ospitaletto | 1,067.94 mi (1,718.69 km) |
| Cadaval to Ostuni | 1,411.01 mi (2,270.80 km) |
| Cadaval to Ottaviano | 1,248.36 mi (2,009.05 km) |
| Cadaval to Ovada | 983.05 mi (1,582.07 km) |
| Cadaval to Ozieri | 962.28 mi (1,548.64 km) |
| Cadaval to Paceco | 1,169.31 mi (1,881.83 km) |
