| Muscle Shoals to Mattoon (Illinois) | 329.55 mi (530.36 km) |
| Muscle Shoals to Mauldin (South Carolina) | 302.58 mi (486.95 km) |
| Muscle Shoals to Maumee (Ohio) | 518.49 mi (834.44 km) |
| Muscle Shoals to Maumelle (Arkansas) | 270.47 mi (435.28 km) |
| Muscle Shoals to Mayagüez (Puerto Rico) | 1,700.05 mi (2,735.97 km) |
| Muscle Shoals to Mayfield Heights (Ohio) | 575.76 mi (926.60 km) |
| Muscle Shoals to Mays Chapel (Maryland) | 685.93 mi (1,103.90 km) |
| Muscle Shoals to Maywood (California) | 1,736.61 mi (2,794.80 km) |
| Muscle Shoals to Maywood (Illinois) | 493.22 mi (793.76 km) |
| Muscle Shoals to McAlester (Oklahoma) | 461.63 mi (742.92 km) |
| Muscle Shoals to McAllen (Texas) | 862.47 mi (1,388.02 km) |
| Muscle Shoals to McCalla (Alabama) | 105.40 mi (169.62 km) |
| Muscle Shoals to McComb (Mississippi) | 292.34 mi (470.47 km) |
| Muscle Shoals to McDonough (Georgia) | 218.72 mi (352.00 km) |
| Muscle Shoals to McFarland (California) | 1,777.73 mi (2,860.98 km) |
