| San Juan to Morris (Illinois) | 2,064.40 mi (3,322.33 km) |
| San Juan to Morristown (New Jersey) | 1,626.05 mi (2,616.88 km) |
| San Juan to Morristown (Tennessee) | 1,617.31 mi (2,602.81 km) |
| San Juan to Morrisville (North Carolina) | 1,435.18 mi (2,309.69 km) |
| San Juan to Morro Bay (California) | 3,526.11 mi (5,674.73 km) |
| San Juan to Morton (Illinois) | 2,069.04 mi (3,329.80 km) |
| San Juan to Morton Grove (Illinois) | 2,073.08 mi (3,336.31 km) |
| San Juan to Moscow (Idaho) | 3,470.73 mi (5,585.60 km) |
| San Juan to Moses Lake (Washington) | 3,581.59 mi (5,764.02 km) |
| San Juan to Moss Bluff (Louisiana) | 1,889.32 mi (3,040.56 km) |
| San Juan to Moss Point (Mississippi) | 1,634.71 mi (2,630.82 km) |
| San Juan to Moultrie (Georgia) | 1,414.73 mi (2,276.79 km) |
| San Juan to Mounds View (Minnesota) | 2,415.65 mi (3,887.62 km) |
| San Juan to Mount Airy (North Carolina) | 1,532.65 mi (2,466.56 km) |
| San Juan to Mount Clemens (Michigan) | 1,940.58 mi (3,123.06 km) |
