| San Giuliano Terme to Orbetello | 99.35 mi (159.89 km) |
| San Giuliano Terme to Oria | 431.75 mi (694.84 km) |
| San Giuliano Terme to Oristano | 282.96 mi (455.37 km) |
| San Giuliano Terme to Orta Nova | 316.43 mi (509.25 km) |
| San Giuliano Terme to Orte | 133.10 mi (214.20 km) |
| San Giuliano Terme to Ortona | 222.37 mi (357.88 km) |
| San Giuliano Terme to Orvieto | 110.73 mi (178.20 km) |
| San Giuliano Terme to Orzinuovi | 115.87 mi (186.47 km) |
| San Giuliano Terme to Osimo | 153.35 mi (246.80 km) |
| San Giuliano Terme to Ospitaletto | 125.18 mi (201.46 km) |
| San Giuliano Terme to Ostuni | 420.77 mi (677.16 km) |
| San Giuliano Terme to Ottaviano | 288.08 mi (463.62 km) |
| San Giuliano Terme to Ovada | 107.58 mi (173.13 km) |
| San Giuliano Terme to Ozieri | 231.56 mi (372.66 km) |
| San Giuliano Terme to Paceco | 414.18 mi (666.56 km) |
