| Tonypandy to Mauldin (South Carolina) | 3,932.88 mi (6,329.36 km) |
| Tonypandy to Maumee (Ohio) | 3,675.27 mi (5,914.77 km) |
| Tonypandy to Maumelle (Arkansas) | 4,338.00 mi (6,981.34 km) |
| Tonypandy to Mayagüez (Puerto Rico) | 4,116.85 mi (6,625.43 km) |
| Tonypandy to Mayfield Heights (Ohio) | 3,589.84 mi (5,777.28 km) |
| Tonypandy to Mays Chapel (Maryland) | 3,486.84 mi (5,611.53 km) |
| Tonypandy to Maywood (California) | 5,328.77 mi (8,575.82 km) |
| Tonypandy to Maywood (Illinois) | 3,824.63 mi (6,155.16 km) |
| Tonypandy to McAlester (Oklahoma) | 4,466.70 mi (7,188.46 km) |
| Tonypandy to McAllen (Texas) | 5,012.77 mi (8,067.27 km) |
| Tonypandy to McCalla (Alabama) | 4,198.18 mi (6,756.31 km) |
| Tonypandy to McComb (Mississippi) | 4,440.29 mi (7,145.95 km) |
| Tonypandy to McDonough (Georgia) | 4,073.34 mi (6,555.41 km) |
| Tonypandy to McFarland (California) | 5,267.90 mi (8,477.86 km) |
| Tonypandy to McHenry (Illinois) | 3,821.02 mi (6,149.33 km) |
