| Ospitaletto to Orangevale (California) | 5,879.23 mi (9,461.71 km) |
| Ospitaletto to Orchards (Washington) | 5,502.95 mi (8,856.14 km) |
| Ospitaletto to Orcutt (California) | 6,079.50 mi (9,784.01 km) |
| Ospitaletto to Oregon (Ohio) | 4,403.80 mi (7,087.23 km) |
| Ospitaletto to Oregon (Wisconsin) | 4,581.00 mi (7,372.41 km) |
| Ospitaletto to Oregon City (Oregon) | 5,524.95 mi (8,891.55 km) |
| Ospitaletto to Orem (Utah) | 5,499.75 mi (8,851.00 km) |
| Ospitaletto to Orinda (California) | 5,953.96 mi (9,581.98 km) |
| Ospitaletto to Orland Park (Illinois) | 4,581.59 mi (7,373.36 km) |
| Ospitaletto to Orlando (Florida) | 4,906.92 mi (7,896.92 km) |
| Ospitaletto to Ormond Beach (Florida) | 4,858.30 mi (7,818.68 km) |
| Ospitaletto to Oro Valley (Arizona) | 5,909.74 mi (9,510.81 km) |
| Ospitaletto to Oroville (California) | 5,841.24 mi (9,400.56 km) |
| Ospitaletto to Oshkosh (Wisconsin) | 4,500.13 mi (7,242.26 km) |
| Ospitaletto to Oskaloosa (Iowa) | 4,780.30 mi (7,693.15 km) |
