| South Plainfield to Montgomeryville (Pennsylvania) | 48.87 mi (78.64 km) |
| South Plainfield to Monticello (Minnesota) | 1,030.41 mi (1,658.29 km) |
| South Plainfield to Montrose (Colorado) | 1,777.68 mi (2,860.90 km) |
| South Plainfield to Moody (Alabama) | 820.76 mi (1,320.88 km) |
| South Plainfield to Moore (Oklahoma) | 1,303.30 mi (2,097.46 km) |
| South Plainfield to Moorestown-Lenola (New Jersey) | 51.07 mi (82.19 km) |
| South Plainfield to Mooresville (North Carolina) | 490.10 mi (788.74 km) |
| South Plainfield to Moorhead (Minnesota) | 1,191.72 mi (1,917.89 km) |
| South Plainfield to Moorpark (California) | 2,451.41 mi (3,945.16 km) |
| South Plainfield to Moraga (California) | 2,529.75 mi (4,071.23 km) |
| South Plainfield to Moreno Valley (California) | 2,373.88 mi (3,820.39 km) |
| South Plainfield to Morgan City (Louisiana) | 1,205.74 mi (1,940.46 km) |
| South Plainfield to Morgan Hill (California) | 2,521.79 mi (4,058.43 km) |
| South Plainfield to Morganton (North Carolina) | 517.55 mi (832.91 km) |
| South Plainfield to Morgantown (West Virginia) | 299.32 mi (481.71 km) |
