| Port Huron to Morris (Illinois) | 326.17 mi (524.92 km) |
| Port Huron to Morristown (New Jersey) | 436.24 mi (702.06 km) |
| Port Huron to Morristown (Tennessee) | 470.53 mi (757.25 km) |
| Port Huron to Morrisville (North Carolina) | 529.71 mi (852.49 km) |
| Port Huron to Morro Bay (California) | 2,103.80 mi (3,385.73 km) |
| Port Huron to Morton (Illinois) | 397.11 mi (639.09 km) |
| Port Huron to Morton Grove (Illinois) | 280.07 mi (450.72 km) |
| Port Huron to Moscow (Idaho) | 1,698.38 mi (2,733.28 km) |
| Port Huron to Moses Lake (Washington) | 1,803.51 mi (2,902.47 km) |
| Port Huron to Moss Bluff (Louisiana) | 1,057.99 mi (1,702.66 km) |
| Port Huron to Moss Point (Mississippi) | 930.28 mi (1,497.13 km) |
| Port Huron to Moultrie (Georgia) | 820.15 mi (1,319.91 km) |
| Port Huron to Mounds View (Minnesota) | 554.13 mi (891.79 km) |
| Port Huron to Mount Airy (North Carolina) | 457.63 mi (736.48 km) |
| Port Huron to Mount Clemens (Michigan) | 34.79 mi (56.00 km) |
