| Horley to Mauldin (South Carolina) | 4,077.08 mi (6,561.42 km) |
| Horley to Maumee (Ohio) | 3,816.95 mi (6,142.78 km) |
| Horley to Maumelle (Arkansas) | 4,479.79 mi (7,209.53 km) |
| Horley to Mayagüez (Puerto Rico) | 4,252.86 mi (6,844.32 km) |
| Horley to Mayfield Heights (Ohio) | 3,732.18 mi (6,006.36 km) |
| Horley to Mays Chapel (Maryland) | 3,630.90 mi (5,843.37 km) |
| Horley to Maywood (California) | 5,456.24 mi (8,780.98 km) |
| Horley to Maywood (Illinois) | 3,964.72 mi (6,380.61 km) |
| Horley to McAlester (Oklahoma) | 4,607.23 mi (7,414.62 km) |
| Horley to McAllen (Texas) | 5,155.56 mi (8,297.07 km) |
| Horley to McCalla (Alabama) | 4,341.88 mi (6,987.59 km) |
| Horley to McComb (Mississippi) | 4,583.76 mi (7,376.86 km) |
| Horley to McDonough (Georgia) | 4,217.51 mi (6,787.43 km) |
| Horley to McFarland (California) | 5,393.27 mi (8,679.63 km) |
| Horley to McHenry (Illinois) | 3,960.67 mi (6,374.08 km) |
