| Certaldo to Orangevale (California) | 6,019.68 mi (9,687.74 km) |
| Certaldo to Orchards (Washington) | 5,646.31 mi (9,086.85 km) |
| Certaldo to Orcutt (California) | 6,217.90 mi (10,006.74 km) |
| Certaldo to Oregon (Ohio) | 4,521.44 mi (7,276.56 km) |
| Certaldo to Oregon (Wisconsin) | 4,704.65 mi (7,571.40 km) |
| Certaldo to Oregon City (Oregon) | 5,668.23 mi (9,122.14 km) |
| Certaldo to Orem (Utah) | 5,635.86 mi (9,070.03 km) |
| Certaldo to Orinda (California) | 6,094.57 mi (9,808.26 km) |
| Certaldo to Orland Park (Illinois) | 4,702.58 mi (7,568.08 km) |
| Certaldo to Orlando (Florida) | 5,003.61 mi (8,052.53 km) |
| Certaldo to Ormond Beach (Florida) | 4,955.97 mi (7,975.86 km) |
| Certaldo to Oro Valley (Arizona) | 6,040.22 mi (9,720.79 km) |
| Certaldo to Oroville (California) | 5,982.16 mi (9,627.35 km) |
| Certaldo to Oshkosh (Wisconsin) | 4,624.46 mi (7,442.35 km) |
| Certaldo to Oskaloosa (Iowa) | 4,904.50 mi (7,893.03 km) |
