| Howard to Mauldin (South Carolina) | 742.58 mi (1,195.07 km) |
| Howard to Maumee (Ohio) | 304.81 mi (490.55 km) |
| Howard to Maumelle (Arkansas) | 709.13 mi (1,141.24 km) |
| Howard to Mayagüez (Puerto Rico) | 2,187.38 mi (3,520.24 km) |
| Howard to Mayfield Heights (Ohio) | 395.90 mi (637.14 km) |
| Howard to Mays Chapel (Maryland) | 685.35 mi (1,102.97 km) |
| Howard to Maywood (California) | 1,754.66 mi (2,823.86 km) |
| Howard to Maywood (Illinois) | 186.32 mi (299.85 km) |
| Howard to McAlester (Oklahoma) | 780.53 mi (1,256.14 km) |
| Howard to McAllen (Texas) | 1,387.91 mi (2,233.63 km) |
| Howard to McCalla (Alabama) | 780.62 mi (1,256.28 km) |
| Howard to McComb (Mississippi) | 929.72 mi (1,496.23 km) |
| Howard to McDonough (Georgia) | 797.38 mi (1,283.26 km) |
| Howard to McFarland (California) | 1,743.70 mi (2,806.22 km) |
| Howard to McHenry (Illinois) | 154.52 mi (248.67 km) |
