| Pisa to Oswego (Illinois) | 4,685.59 mi (7,540.73 km) |
| Pisa to Oswego (New York) | 4,128.83 mi (6,644.71 km) |
| Pisa to Otsego (Minnesota) | 4,727.78 mi (7,608.62 km) |
| Pisa to Ottawa (Illinois) | 4,719.52 mi (7,595.33 km) |
| Pisa to Ottawa (Kansas) | 5,100.49 mi (8,208.45 km) |
| Pisa to Ottumwa (Iowa) | 4,876.19 mi (7,847.47 km) |
| Pisa to Overland (Missouri) | 4,901.02 mi (7,887.42 km) |
| Pisa to Overland Park (Kansas) | 5,064.27 mi (8,150.16 km) |
| Pisa to Overlea (Maryland) | 4,288.71 mi (6,902.01 km) |
| Pisa to Oviedo (Florida) | 4,954.51 mi (7,973.51 km) |
| Pisa to Owasso (Oklahoma) | 5,233.72 mi (8,422.86 km) |
| Pisa to Owatonna (Minnesota) | 4,766.78 mi (7,671.39 km) |
| Pisa to Owensboro (Kentucky) | 4,809.56 mi (7,740.24 km) |
| Pisa to Owings Mills (Maryland) | 4,298.76 mi (6,918.19 km) |
| Pisa to Owosso (Michigan) | 4,462.66 mi (7,181.96 km) |
