| Picayune to Mattoon (Illinois) | 622.46 mi (1,001.76 km) |
| Picayune to Mauldin (South Carolina) | 519.35 mi (835.81 km) |
| Picayune to Maumee (Ohio) | 832.65 mi (1,340.02 km) |
| Picayune to Maumelle (Arkansas) | 337.96 mi (543.90 km) |
| Picayune to Mayagüez (Puerto Rico) | 1,649.29 mi (2,654.28 km) |
| Picayune to Mayfield Heights (Ohio) | 886.13 mi (1,426.09 km) |
| Picayune to Mays Chapel (Maryland) | 958.21 mi (1,542.09 km) |
| Picayune to Maywood (California) | 1,677.62 mi (2,699.87 km) |
| Picayune to Maywood (Illinois) | 790.58 mi (1,272.32 km) |
| Picayune to McAlester (Oklahoma) | 466.61 mi (750.94 km) |
| Picayune to McAllen (Texas) | 599.90 mi (965.45 km) |
| Picayune to McCalla (Alabama) | 246.24 mi (396.28 km) |
| Picayune to McComb (Mississippi) | 68.31 mi (109.93 km) |
| Picayune to McDonough (Georgia) | 380.79 mi (612.83 km) |
| Picayune to McFarland (California) | 1,740.98 mi (2,801.83 km) |
