| Weslaco to Mattoon (Illinois) | 1,075.02 mi (1,730.07 km) |
| Weslaco to Mauldin (South Carolina) | 1,105.68 mi (1,779.42 km) |
| Weslaco to Maumee (Ohio) | 1,340.99 mi (2,158.11 km) |
| Weslaco to Maumelle (Arkansas) | 686.21 mi (1,104.35 km) |
| Weslaco to Mayagüez (Puerto Rico) | 2,043.19 mi (3,288.20 km) |
| Weslaco to Mayfield Heights (Ohio) | 1,418.33 mi (2,282.59 km) |
| Weslaco to Mays Chapel (Maryland) | 1,534.94 mi (2,470.25 km) |
| Weslaco to Maywood (California) | 1,320.21 mi (2,124.67 km) |
| Weslaco to Maywood (Illinois) | 1,229.56 mi (1,978.79 km) |
| Weslaco to McAlester (Oklahoma) | 619.77 mi (997.42 km) |
| Weslaco to McAllen (Texas) | 16.68 mi (26.84 km) |
| Weslaco to McCalla (Alabama) | 821.17 mi (1,321.54 km) |
| Weslaco to McComb (Mississippi) | 574.94 mi (925.28 km) |
| Weslaco to McDonough (Georgia) | 968.82 mi (1,559.17 km) |
| Weslaco to McFarland (California) | 1,416.74 mi (2,280.02 km) |
