| Opovo to Mauldin (South Carolina) | 5,112.05 mi (8,227.05 km) |
| Opovo to Maumee (Ohio) | 4,841.23 mi (7,791.21 km) |
| Opovo to Maumelle (Arkansas) | 5,503.90 mi (8,857.67 km) |
| Opovo to Mayagüez (Puerto Rico) | 5,220.09 mi (8,400.93 km) |
| Opovo to Mayfield Heights (Ohio) | 4,759.67 mi (7,659.94 km) |
| Opovo to Mays Chapel (Maryland) | 4,665.51 mi (7,508.41 km) |
| Opovo to Maywood (California) | 6,392.09 mi (10,287.07 km) |
| Opovo to Maywood (Illinois) | 4,980.89 mi (8,015.97 km) |
| Opovo to McAlester (Oklahoma) | 5,624.62 mi (9,051.95 km) |
| Opovo to McAllen (Texas) | 6,184.20 mi (9,952.51 km) |
| Opovo to McCalla (Alabama) | 5,375.04 mi (8,650.29 km) |
| Opovo to McComb (Mississippi) | 5,615.89 mi (9,037.90 km) |
| Opovo to McDonough (Georgia) | 5,252.40 mi (8,452.92 km) |
| Opovo to McFarland (California) | 6,316.21 mi (10,164.96 km) |
| Opovo to McHenry (Illinois) | 4,974.59 mi (8,005.83 km) |
