| Seymour to Marrero (Louisiana) | 670.45 mi (1,078.98 km) |
| Seymour to Marshall (Minnesota) | 635.83 mi (1,023.27 km) |
| Seymour to Marshall (Missouri) | 392.40 mi (631.51 km) |
| Seymour to Marshall (Texas) | 648.50 mi (1,043.66 km) |
| Seymour to Marshalltown (Iowa) | 425.69 mi (685.08 km) |
| Seymour to Marshfield (Wisconsin) | 452.12 mi (727.61 km) |
| Seymour to Martha Lake (Washington) | 1,904.93 mi (3,065.69 km) |
| Seymour to Martin (Tennessee) | 242.31 mi (389.95 km) |
| Seymour to Martinez (California) | 1,947.64 mi (3,134.43 km) |
| Seymour to Martinez (Georgia) | 430.31 mi (692.52 km) |
| Seymour to Martinsburg (West Virginia) | 425.03 mi (684.01 km) |
| Seymour to Martinsville (Indiana) | 43.36 mi (69.79 km) |
| Seymour to Martinsville (New Jersey) | 611.24 mi (983.69 km) |
| Seymour to Martinsville (Virginia) | 364.22 mi (586.15 km) |
| Seymour to Maryland City (Maryland) | 487.62 mi (784.75 km) |
