| Seymour to Mattoon (Illinois) | 137.26 mi (220.90 km) |
| Seymour to Mauldin (South Carolina) | 349.45 mi (562.39 km) |
| Seymour to Maumee (Ohio) | 215.88 mi (347.43 km) |
| Seymour to Maumelle (Arkansas) | 457.39 mi (736.10 km) |
| Seymour to Mayagüez (Puerto Rico) | 1,822.05 mi (2,932.31 km) |
| Seymour to Mayfield Heights (Ohio) | 293.73 mi (472.72 km) |
| Seymour to Mays Chapel (Maryland) | 495.70 mi (797.75 km) |
| Seymour to Maywood (California) | 1,817.08 mi (2,924.31 km) |
| Seymour to Maywood (Illinois) | 227.14 mi (365.55 km) |
| Seymour to McAlester (Oklahoma) | 611.95 mi (984.84 km) |
| Seymour to McAllen (Texas) | 1,133.47 mi (1,824.15 km) |
| Seymour to McCalla (Alabama) | 395.19 mi (635.99 km) |
| Seymour to McComb (Mississippi) | 591.68 mi (952.21 km) |
| Seymour to McDonough (Georgia) | 392.72 mi (632.02 km) |
| Seymour to McFarland (California) | 1,836.24 mi (2,955.14 km) |
