| Williamsport to Montgomeryville (Pennsylvania) | 116.27 mi (187.12 km) |
| Williamsport to Monticello (Minnesota) | 886.77 mi (1,427.12 km) |
| Williamsport to Montrose (Colorado) | 1,637.35 mi (2,635.06 km) |
| Williamsport to Moody (Alabama) | 739.50 mi (1,190.11 km) |
| Williamsport to Moore (Oklahoma) | 1,177.85 mi (1,895.57 km) |
| Williamsport to Moorestown-Lenola (New Jersey) | 139.89 mi (225.13 km) |
| Williamsport to Mooresville (North Carolina) | 441.21 mi (710.05 km) |
| Williamsport to Moorhead (Minnesota) | 1,049.52 mi (1,689.04 km) |
| Williamsport to Moorpark (California) | 2,312.21 mi (3,721.14 km) |
| Williamsport to Moraga (California) | 2,386.73 mi (3,841.08 km) |
| Williamsport to Moreno Valley (California) | 2,235.81 mi (3,598.19 km) |
| Williamsport to Morgan City (Louisiana) | 1,123.91 mi (1,808.76 km) |
| Williamsport to Morgan Hill (California) | 2,379.30 mi (3,829.11 km) |
| Williamsport to Morganton (North Carolina) | 455.86 mi (733.63 km) |
| Williamsport to Morgantown (West Virginia) | 188.80 mi (303.85 km) |
