| Thornton Heath to Mauldin (South Carolina) | 4,074.77 mi (6,557.70 km) |
| Thornton Heath to Maumee (Ohio) | 3,812.78 mi (6,136.08 km) |
| Thornton Heath to Maumelle (Arkansas) | 4,475.67 mi (7,202.89 km) |
| Thornton Heath to Mayagüez (Puerto Rico) | 4,257.26 mi (6,851.40 km) |
| Thornton Heath to Mayfield Heights (Ohio) | 3,728.38 mi (6,000.25 km) |
| Thornton Heath to Mays Chapel (Maryland) | 3,628.44 mi (5,839.41 km) |
| Thornton Heath to Maywood (California) | 5,447.87 mi (8,767.51 km) |
| Thornton Heath to Maywood (Illinois) | 3,959.83 mi (6,372.73 km) |
| Thornton Heath to McAlester (Oklahoma) | 4,602.50 mi (7,407.01 km) |
| Thornton Heath to McAllen (Texas) | 5,152.00 mi (8,291.35 km) |
| Thornton Heath to McCalla (Alabama) | 4,339.04 mi (6,983.01 km) |
| Thornton Heath to McComb (Mississippi) | 4,580.72 mi (7,371.96 km) |
| Thornton Heath to McDonough (Georgia) | 4,215.17 mi (6,783.66 km) |
| Thornton Heath to McFarland (California) | 5,384.51 mi (8,665.52 km) |
| Thornton Heath to McHenry (Illinois) | 3,955.59 mi (6,365.91 km) |
