| Santeramo in Colle to Orbetello | 308.36 mi (496.26 km) |
| Santeramo in Colle to Oria | 49.93 mi (80.36 km) |
| Santeramo in Colle to Oristano | 434.70 mi (699.58 km) |
| Santeramo in Colle to Orta Nova | 66.08 mi (106.35 km) |
| Santeramo in Colle to Orte | 253.61 mi (408.14 km) |
| Santeramo in Colle to Ortona | 162.57 mi (261.64 km) |
| Santeramo in Colle to Orvieto | 274.10 mi (441.12 km) |
| Santeramo in Colle to Orzinuovi | 468.58 mi (754.10 km) |
| Santeramo in Colle to Osimo | 250.29 mi (402.81 km) |
| Santeramo in Colle to Ospitaletto | 470.52 mi (757.23 km) |
| Santeramo in Colle to Ostuni | 42.98 mi (69.17 km) |
| Santeramo in Colle to Ottaviano | 119.73 mi (192.69 km) |
| Santeramo in Colle to Ovada | 489.81 mi (788.28 km) |
| Santeramo in Colle to Ozieri | 406.85 mi (654.76 km) |
| Santeramo in Colle to Paceco | 297.54 mi (478.85 km) |
