| Salamanca to Orbetello | 875.07 mi (1,408.29 km) |
| Salamanca to Oria | 1,216.58 mi (1,957.89 km) |
| Salamanca to Oristano | 752.42 mi (1,210.91 km) |
| Salamanca to Orta Nova | 1,109.60 mi (1,785.73 km) |
| Salamanca to Orte | 934.91 mi (1,504.60 km) |
| Salamanca to Ortona | 1,037.73 mi (1,670.07 km) |
| Salamanca to Orvieto | 921.16 mi (1,482.47 km) |
| Salamanca to Orzinuovi | 841.73 mi (1,354.63 km) |
| Salamanca to Osimo | 992.71 mi (1,597.61 km) |
| Salamanca to Ospitaletto | 851.21 mi (1,369.89 km) |
| Salamanca to Ostuni | 1,211.53 mi (1,949.76 km) |
| Salamanca to Ottaviano | 1,049.46 mi (1,688.94 km) |
| Salamanca to Ovada | 767.35 mi (1,234.94 km) |
| Salamanca to Ozieri | 767.00 mi (1,234.36 km) |
| Salamanca to Paceco | 991.09 mi (1,595.00 km) |
