| Prato to Odessa (Texas) | 5,731.81 mi (9,224.46 km) |
| Prato to Ogden (Utah) | 5,577.97 mi (8,976.88 km) |
| Prato to Oildale (California) | 6,126.13 mi (9,859.05 km) |
| Prato to Ojus (Florida) | 5,057.07 mi (8,138.57 km) |
| Prato to Okemos (Michigan) | 4,505.70 mi (7,251.22 km) |
| Prato to Oklahoma City (Oklahoma) | 5,361.13 mi (8,627.91 km) |
| Prato to Okmulgee (Oklahoma) | 5,294.35 mi (8,520.44 km) |
| Prato to Olathe (Kansas) | 5,089.76 mi (8,191.17 km) |
| Prato to Old Jamestown (Missouri) | 4,912.53 mi (7,905.95 km) |
| Prato to Oldsmar (Florida) | 5,077.70 mi (8,171.77 km) |
| Prato to Olean (New York) | 4,286.12 mi (6,897.84 km) |
| Prato to Olive Branch (Mississippi) | 5,074.08 mi (8,165.93 km) |
| Prato to Olivehurst (California) | 5,989.23 mi (9,638.73 km) |
| Prato to Olney (Maryland) | 4,346.32 mi (6,994.73 km) |
| Prato to Olympia (Washington) | 5,557.68 mi (8,944.22 km) |
