| San Giuliano Milanese to Orbetello | 225.95 mi (363.63 km) |
| San Giuliano Milanese to Oria | 540.75 mi (870.25 km) |
| San Giuliano Milanese to Oristano | 381.23 mi (613.53 km) |
| San Giuliano Milanese to Orta Nova | 427.89 mi (688.62 km) |
| San Giuliano Milanese to Orte | 255.09 mi (410.53 km) |
| San Giuliano Milanese to Ortona | 330.57 mi (532.00 km) |
| San Giuliano Milanese to Orvieto | 232.42 mi (374.04 km) |
| San Giuliano Milanese to Orzinuovi | 31.53 mi (50.75 km) |
| San Giuliano Milanese to Osimo | 245.84 mi (395.65 km) |
| San Giuliano Milanese to Ospitaletto | 39.75 mi (63.97 km) |
| San Giuliano Milanese to Ostuni | 528.20 mi (850.06 km) |
| San Giuliano Milanese to Ottaviano | 409.01 mi (658.24 km) |
| San Giuliano Milanese to Ovada | 61.08 mi (98.30 km) |
| San Giuliano Milanese to Ozieri | 332.99 mi (535.90 km) |
| San Giuliano Milanese to Paceco | 539.32 mi (867.96 km) |
