| Pontedera to Olympia Heights (Florida) | 5,059.37 mi (8,142.27 km) |
| Pontedera to Omaha (Nebraska) | 5,015.51 mi (8,071.69 km) |
| Pontedera to On Top of the World Designated Place (Florida) | 4,997.08 mi (8,042.02 km) |
| Pontedera to Onalaska (Wisconsin) | 4,710.94 mi (7,581.53 km) |
| Pontedera to Oneida (New York) | 4,119.58 mi (6,629.82 km) |
| Pontedera to Oneonta (New York) | 4,117.84 mi (6,627.03 km) |
| Pontedera to Ontario (California) | 6,157.32 mi (9,909.24 km) |
| Pontedera to Ontario (Oregon) | 5,572.68 mi (8,968.37 km) |
| Pontedera to Opa-locka (Florida) | 5,047.48 mi (8,123.14 km) |
| Pontedera to Opelika (Alabama) | 4,975.50 mi (8,007.29 km) |
| Pontedera to Opelousas (Louisiana) | 5,366.57 mi (8,636.66 km) |
| Pontedera to Orange (California) | 6,177.72 mi (9,942.08 km) |
| Pontedera to Orange (Texas) | 5,457.84 mi (8,783.54 km) |
| Pontedera to Orange City (Florida) | 4,958.93 mi (7,980.62 km) |
| Pontedera to Orangeburg (South Carolina) | 4,738.43 mi (7,625.77 km) |
