| Derby to Orbetello | 931.50 mi (1,499.11 km) |
| Derby to Oria | 1,240.22 mi (1,995.94 km) |
| Derby to Oristano | 1,016.96 mi (1,636.63 km) |
| Derby to Orta Nova | 1,132.09 mi (1,821.92 km) |
| Derby to Orte | 965.24 mi (1,553.41 km) |
| Derby to Ortona | 1,034.83 mi (1,665.39 km) |
| Derby to Orvieto | 942.56 mi (1,516.91 km) |
| Derby to Orzinuovi | 730.37 mi (1,175.42 km) |
| Derby to Osimo | 945.13 mi (1,521.04 km) |
| Derby to Ospitaletto | 726.72 mi (1,169.54 km) |
| Derby to Ostuni | 1,226.19 mi (1,973.36 km) |
| Derby to Ottaviano | 1,118.93 mi (1,800.75 km) |
| Derby to Ovada | 733.33 mi (1,180.19 km) |
| Derby to Ozieri | 983.94 mi (1,583.50 km) |
| Derby to Paceco | 1,231.09 mi (1,981.25 km) |
