| Sorum to Orbetello | 1,212.43 mi (1,951.22 km) |
| Sorum to Oria | 1,374.22 mi (2,211.60 km) |
| Sorum to Oristano | 1,392.20 mi (2,240.53 km) |
| Sorum to Orta Nova | 1,303.10 mi (2,097.13 km) |
| Sorum to Orte | 1,211.95 mi (1,950.45 km) |
| Sorum to Ortona | 1,225.93 mi (1,972.94 km) |
| Sorum to Orvieto | 1,193.72 mi (1,921.11 km) |
| Sorum to Orzinuovi | 1,009.31 mi (1,624.32 km) |
| Sorum to Osimo | 1,144.17 mi (1,841.37 km) |
| Sorum to Ospitaletto | 998.29 mi (1,606.60 km) |
| Sorum to Ostuni | 1,357.89 mi (2,185.31 km) |
| Sorum to Ottaviano | 1,329.52 mi (2,139.65 km) |
| Sorum to Ovada | 1,065.88 mi (1,715.36 km) |
| Sorum to Ozieri | 1,344.01 mi (2,162.97 km) |
| Sorum to Paceco | 1,521.40 mi (2,448.46 km) |
