| Ospitaletto to Odessa (Texas) | 5,621.14 mi (9,046.35 km) |
| Ospitaletto to Ogden (Utah) | 5,457.11 mi (8,782.37 km) |
| Ospitaletto to Oildale (California) | 6,004.55 mi (9,663.39 km) |
| Ospitaletto to Ojus (Florida) | 4,971.02 mi (8,000.08 km) |
| Ospitaletto to Okemos (Michigan) | 4,397.34 mi (7,076.83 km) |
| Ospitaletto to Oklahoma City (Oklahoma) | 5,251.03 mi (8,450.72 km) |
| Ospitaletto to Okmulgee (Oklahoma) | 5,185.12 mi (8,344.65 km) |
| Ospitaletto to Olathe (Kansas) | 4,978.68 mi (8,012.42 km) |
| Ospitaletto to Old Jamestown (Missouri) | 4,804.26 mi (7,731.71 km) |
| Ospitaletto to Oldsmar (Florida) | 4,986.64 mi (8,025.23 km) |
| Ospitaletto to Olean (New York) | 4,181.97 mi (6,730.22 km) |
| Ospitaletto to Olive Branch (Mississippi) | 4,969.66 mi (7,997.90 km) |
| Ospitaletto to Olivehurst (California) | 5,865.76 mi (9,440.02 km) |
| Ospitaletto to Olney (Maryland) | 4,246.55 mi (6,834.16 km) |
| Ospitaletto to Olympia (Washington) | 5,432.41 mi (8,742.63 km) |
