| Pisa to Orangevale (California) | 5,991.54 mi (9,642.46 km) |
| Pisa to Orchards (Washington) | 5,619.81 mi (9,044.21 km) |
| Pisa to Orcutt (California) | 6,188.91 mi (9,960.09 km) |
| Pisa to Oregon (Ohio) | 4,488.46 mi (7,223.48 km) |
| Pisa to Oregon (Wisconsin) | 4,672.37 mi (7,519.46 km) |
| Pisa to Oregon City (Oregon) | 5,641.68 mi (9,079.40 km) |
| Pisa to Orem (Utah) | 5,606.12 mi (9,022.18 km) |
| Pisa to Orinda (California) | 6,066.50 mi (9,763.09 km) |
| Pisa to Orland Park (Illinois) | 4,669.96 mi (7,515.57 km) |
| Pisa to Orlando (Florida) | 4,969.53 mi (7,997.69 km) |
| Pisa to Ormond Beach (Florida) | 4,921.90 mi (7,921.03 km) |
| Pisa to Oro Valley (Arizona) | 6,009.05 mi (9,670.64 km) |
| Pisa to Oroville (California) | 5,954.25 mi (9,582.44 km) |
| Pisa to Oshkosh (Wisconsin) | 4,592.28 mi (7,390.56 km) |
| Pisa to Oskaloosa (Iowa) | 4,872.29 mi (7,841.19 km) |
