| Cantanhede to Orbetello | 1,034.36 mi (1,664.65 km) |
| Cantanhede to Oria | 1,374.46 mi (2,211.98 km) |
| Cantanhede to Oristano | 907.02 mi (1,459.70 km) |
| Cantanhede to Orta Nova | 1,268.18 mi (2,040.94 km) |
| Cantanhede to Orte | 1,094.21 mi (1,760.96 km) |
| Cantanhede to Ortona | 1,196.99 mi (1,926.37 km) |
| Cantanhede to Orvieto | 1,080.54 mi (1,738.96 km) |
| Cantanhede to Orzinuovi | 998.22 mi (1,606.48 km) |
| Cantanhede to Osimo | 1,152.04 mi (1,854.03 km) |
| Cantanhede to Ospitaletto | 1,007.41 mi (1,621.28 km) |
| Cantanhede to Ostuni | 1,369.66 mi (2,204.26 km) |
| Cantanhede to Ottaviano | 1,207.38 mi (1,943.09 km) |
| Cantanhede to Ovada | 924.96 mi (1,488.57 km) |
| Cantanhede to Ozieri | 923.63 mi (1,486.44 km) |
| Cantanhede to Paceco | 1,141.61 mi (1,837.24 km) |
