| Prestonpans to Orangevale (California) | 4,966.08 mi (7,992.14 km) |
| Prestonpans to Orchards (Washington) | 4,589.41 mi (7,385.93 km) |
| Prestonpans to Orcutt (California) | 5,169.18 mi (8,318.99 km) |
| Prestonpans to Oregon (Ohio) | 3,571.18 mi (5,747.26 km) |
| Prestonpans to Oregon (Wisconsin) | 3,720.78 mi (5,988.02 km) |
| Prestonpans to Oregon City (Oregon) | 4,611.33 mi (7,421.22 km) |
| Prestonpans to Orem (Utah) | 4,594.55 mi (7,394.21 km) |
| Prestonpans to Orinda (California) | 5,040.65 mi (8,112.15 km) |
| Prestonpans to Orland Park (Illinois) | 3,732.73 mi (6,007.25 km) |
| Prestonpans to Orlando (Florida) | 4,171.84 mi (6,713.93 km) |
| Prestonpans to Ormond Beach (Florida) | 4,118.89 mi (6,628.72 km) |
| Prestonpans to Oro Valley (Arizona) | 5,019.98 mi (8,078.88 km) |
| Prestonpans to Oroville (California) | 4,927.66 mi (7,930.30 km) |
| Prestonpans to Oshkosh (Wisconsin) | 3,637.50 mi (5,853.99 km) |
| Prestonpans to Oskaloosa (Iowa) | 3,916.87 mi (6,303.59 km) |
