| Certaldo to Odessa (Texas) | 5,743.89 mi (9,243.89 km) |
| Certaldo to Ogden (Utah) | 5,593.91 mi (9,002.52 km) |
| Certaldo to Oildale (California) | 6,142.39 mi (9,885.22 km) |
| Certaldo to Ojus (Florida) | 5,062.39 mi (8,147.13 km) |
| Certaldo to Okemos (Michigan) | 4,517.11 mi (7,269.59 km) |
| Certaldo to Oklahoma City (Oklahoma) | 5,373.04 mi (8,647.08 km) |
| Certaldo to Okmulgee (Oklahoma) | 5,305.99 mi (8,539.17 km) |
| Certaldo to Olathe (Kansas) | 5,102.00 mi (8,210.87 km) |
| Certaldo to Old Jamestown (Missouri) | 4,923.89 mi (7,924.23 km) |
| Certaldo to Oldsmar (Florida) | 5,084.27 mi (8,182.34 km) |
| Certaldo to Olean (New York) | 4,296.29 mi (6,914.20 km) |
| Certaldo to Olive Branch (Mississippi) | 5,084.26 mi (8,182.33 km) |
| Certaldo to Olivehurst (California) | 6,006.52 mi (9,666.55 km) |
| Certaldo to Olney (Maryland) | 4,355.25 mi (7,009.09 km) |
| Certaldo to Olympia (Washington) | 5,576.26 mi (8,974.13 km) |
