| Horw to Mauldin (South Carolina) | 4,540.53 mi (7,307.28 km) |
| Horw to Maumee (Ohio) | 4,291.36 mi (6,906.28 km) |
| Horw to Maumelle (Arkansas) | 4,953.90 mi (7,972.53 km) |
| Horw to Mayagüez (Puerto Rico) | 4,627.51 mi (7,447.26 km) |
| Horw to Mayfield Heights (Ohio) | 4,204.97 mi (6,767.24 km) |
| Horw to Mays Chapel (Maryland) | 4,095.77 mi (6,591.50 km) |
| Horw to Maywood (California) | 5,930.46 mi (9,544.16 km) |
| Horw to Maywood (Illinois) | 4,441.71 mi (7,148.24 km) |
| Horw to McAlester (Oklahoma) | 5,083.63 mi (8,181.31 km) |
| Horw to McAllen (Texas) | 5,626.66 mi (9,055.24 km) |
| Horw to McCalla (Alabama) | 4,808.93 mi (7,739.22 km) |
| Horw to McComb (Mississippi) | 5,052.02 mi (8,130.44 km) |
| Horw to McDonough (Georgia) | 4,681.12 mi (7,533.53 km) |
| Horw to McFarland (California) | 5,865.30 mi (9,439.29 km) |
| Horw to McHenry (Illinois) | 4,438.13 mi (7,142.48 km) |
