| Usmate Velate to Orbetello | 240.33 mi (386.77 km) |
| Usmate Velate to Oria | 548.47 mi (882.68 km) |
| Usmate Velate to Oristano | 398.74 mi (641.71 km) |
| Usmate Velate to Orta Nova | 436.48 mi (702.44 km) |
| Usmate Velate to Orte | 266.97 mi (429.65 km) |
| Usmate Velate to Ortona | 338.97 mi (545.52 km) |
| Usmate Velate to Orvieto | 244.37 mi (393.28 km) |
| Usmate Velate to Orzinuovi | 33.10 mi (53.27 km) |
| Usmate Velate to Osimo | 252.55 mi (406.43 km) |
| Usmate Velate to Ospitaletto | 35.57 mi (57.25 km) |
| Usmate Velate to Ostuni | 535.62 mi (862.00 km) |
| Usmate Velate to Ottaviano | 420.02 mi (675.95 km) |
| Usmate Velate to Ovada | 77.80 mi (125.21 km) |
| Usmate Velate to Ozieri | 350.40 mi (563.91 km) |
| Usmate Velate to Paceco | 554.63 mi (892.59 km) |
