| Prestonpans to Odessa (Texas) | 4,759.92 mi (7,660.35 km) |
| Prestonpans to Ogden (Utah) | 4,550.31 mi (7,323.02 km) |
| Prestonpans to Oildale (California) | 5,095.28 mi (8,200.06 km) |
| Prestonpans to Ojus (Florida) | 4,262.57 mi (6,859.94 km) |
| Prestonpans to Okemos (Michigan) | 3,555.08 mi (5,721.35 km) |
| Prestonpans to Oklahoma City (Oklahoma) | 4,394.37 mi (7,072.05 km) |
| Prestonpans to Okmulgee (Oklahoma) | 4,333.48 mi (6,974.07 km) |
| Prestonpans to Olathe (Kansas) | 4,117.96 mi (6,627.21 km) |
| Prestonpans to Old Jamestown (Missouri) | 3,960.02 mi (6,373.03 km) |
| Prestonpans to Oldsmar (Florida) | 4,245.77 mi (6,832.91 km) |
| Prestonpans to Olean (New York) | 3,367.09 mi (5,418.80 km) |
| Prestonpans to Olive Branch (Mississippi) | 4,146.74 mi (6,673.53 km) |
| Prestonpans to Olivehurst (California) | 4,952.31 mi (7,969.98 km) |
| Prestonpans to Olney (Maryland) | 3,458.82 mi (5,566.43 km) |
| Prestonpans to Olympia (Washington) | 4,519.56 mi (7,273.52 km) |
