| Gateway to Mauldin (South Carolina) | 567.73 mi (913.67 km) |
| Gateway to Maumee (Ohio) | 1,041.46 mi (1,676.06 km) |
| Gateway to Maumelle (Arkansas) | 851.82 mi (1,370.87 km) |
| Gateway to Mayagüez (Puerto Rico) | 1,096.66 mi (1,764.91 km) |
| Gateway to Mayfield Heights (Ohio) | 1,032.26 mi (1,661.25 km) |
| Gateway to Mays Chapel (Maryland) | 935.48 mi (1,505.51 km) |
| Gateway to Maywood (California) | 2,221.45 mi (3,575.09 km) |
| Gateway to Maywood (Illinois) | 1,112.31 mi (1,790.09 km) |
| Gateway to McAlester (Oklahoma) | 1,011.43 mi (1,627.75 km) |
| Gateway to McAllen (Texas) | 1,020.84 mi (1,642.89 km) |
| Gateway to McCalla (Alabama) | 561.85 mi (904.21 km) |
| Gateway to McComb (Mississippi) | 618.11 mi (994.76 km) |
| Gateway to McDonough (Georgia) | 495.33 mi (797.16 km) |
| Gateway to McFarland (California) | 2,289.86 mi (3,685.17 km) |
| Gateway to McHenry (Illinois) | 1,150.06 mi (1,850.85 km) |
