| Williamstown to Montgomeryville (Pennsylvania) | 41.28 mi (66.44 km) |
| Williamstown to Monticello (Minnesota) | 1,031.20 mi (1,659.56 km) |
| Williamstown to Montrose (Colorado) | 1,755.71 mi (2,825.54 km) |
| Williamstown to Moody (Alabama) | 763.66 mi (1,229.00 km) |
| Williamstown to Moore (Oklahoma) | 1,265.60 mi (2,036.79 km) |
| Williamstown to Moorestown-Lenola (New Jersey) | 19.26 mi (30.99 km) |
| Williamstown to Mooresville (North Carolina) | 427.30 mi (687.67 km) |
| Williamstown to Moorhead (Minnesota) | 1,196.87 mi (1,926.18 km) |
| Williamstown to Moorpark (California) | 2,426.93 mi (3,905.77 km) |
| Williamstown to Moraga (California) | 2,513.51 mi (4,045.10 km) |
| Williamstown to Moreno Valley (California) | 2,347.71 mi (3,778.28 km) |
| Williamstown to Morgan City (Louisiana) | 1,147.62 mi (1,846.91 km) |
| Williamstown to Morgan Hill (California) | 2,504.00 mi (4,029.80 km) |
| Williamstown to Morganton (North Carolina) | 457.30 mi (735.95 km) |
| Williamstown to Morgantown (West Virginia) | 264.22 mi (425.22 km) |
