| East Dereham to Orbetello | 852.64 mi (1,372.19 km) |
| East Dereham to Oria | 1,150.61 mi (1,851.73 km) |
| East Dereham to Oristano | 953.98 mi (1,535.29 km) |
| East Dereham to Orta Nova | 1,044.45 mi (1,680.89 km) |
| East Dereham to Orte | 882.84 mi (1,420.79 km) |
| East Dereham to Ortona | 947.71 mi (1,525.19 km) |
| East Dereham to Orvieto | 860.25 mi (1,384.43 km) |
| East Dereham to Orzinuovi | 646.29 mi (1,040.10 km) |
| East Dereham to Osimo | 857.28 mi (1,379.67 km) |
| East Dereham to Ospitaletto | 641.62 mi (1,032.59 km) |
| East Dereham to Ostuni | 1,136.25 mi (1,828.61 km) |
| East Dereham to Ottaviano | 1,035.02 mi (1,665.71 km) |
| East Dereham to Ovada | 656.76 mi (1,056.95 km) |
| East Dereham to Ozieri | 917.79 mi (1,477.04 km) |
| East Dereham to Paceco | 1,158.27 mi (1,864.06 km) |
