| Preakness to Montgomeryville (Pennsylvania) | 71.43 mi (114.96 km) |
| Preakness to Monticello (Minnesota) | 1,029.23 mi (1,656.39 km) |
| Preakness to Montrose (Colorado) | 1,785.02 mi (2,872.71 km) |
| Preakness to Moody (Alabama) | 842.70 mi (1,356.20 km) |
| Preakness to Moore (Oklahoma) | 1,317.16 mi (2,119.77 km) |
| Preakness to Moorestown-Lenola (New Jersey) | 77.63 mi (124.94 km) |
| Preakness to Mooresville (North Carolina) | 514.59 mi (828.14 km) |
| Preakness to Moorhead (Minnesota) | 1,188.64 mi (1,912.93 km) |
| Preakness to Moorpark (California) | 2,459.55 mi (3,958.26 km) |
| Preakness to Moraga (California) | 2,534.56 mi (4,078.98 km) |
| Preakness to Moreno Valley (California) | 2,382.72 mi (3,834.61 km) |
| Preakness to Morgan City (Louisiana) | 1,227.96 mi (1,976.20 km) |
| Preakness to Morgan Hill (California) | 2,527.23 mi (4,067.18 km) |
| Preakness to Morganton (North Carolina) | 541.01 mi (870.67 km) |
| Preakness to Morgantown (West Virginia) | 314.61 mi (506.31 km) |
