| Alton to Mauldin (South Carolina) | 4,044.45 mi (6,508.91 km) |
| Alton to Maumee (Ohio) | 3,786.04 mi (6,093.04 km) |
| Alton to Maumelle (Arkansas) | 4,448.83 mi (7,159.70 km) |
| Alton to Mayagüez (Puerto Rico) | 4,218.02 mi (6,788.24 km) |
| Alton to Mayfield Heights (Ohio) | 3,700.90 mi (5,956.02 km) |
| Alton to Mays Chapel (Maryland) | 3,598.40 mi (5,791.07 km) |
| Alton to Maywood (California) | 5,431.23 mi (8,740.72 km) |
| Alton to Maywood (Illinois) | 3,934.63 mi (6,332.18 km) |
| Alton to McAlester (Oklahoma) | 4,576.93 mi (7,365.86 km) |
| Alton to McAllen (Texas) | 5,124.01 mi (8,246.30 km) |
| Alton to McCalla (Alabama) | 4,309.69 mi (6,935.77 km) |
| Alton to McComb (Mississippi) | 4,551.75 mi (7,325.33 km) |
| Alton to McDonough (Georgia) | 4,184.91 mi (6,734.95 km) |
| Alton to McFarland (California) | 5,368.99 mi (8,640.56 km) |
| Alton to McHenry (Illinois) | 3,930.79 mi (6,325.99 km) |
