| Montemor-o-Novo to Mauldin (South Carolina) | 3,996.95 mi (6,432.47 km) |
| Montemor-o-Novo to Maumee (Ohio) | 3,859.48 mi (6,211.23 km) |
| Montemor-o-Novo to Maumelle (Arkansas) | 4,494.36 mi (7,232.97 km) |
| Montemor-o-Novo to Mayagüez (Puerto Rico) | 3,778.53 mi (6,080.95 km) |
| Montemor-o-Novo to Mayfield Heights (Ohio) | 3,756.14 mi (6,044.92 km) |
| Montemor-o-Novo to Mays Chapel (Maryland) | 3,578.95 mi (5,759.77 km) |
| Montemor-o-Novo to Maywood (California) | 5,710.36 mi (9,189.93 km) |
| Montemor-o-Novo to Maywood (Illinois) | 4,045.98 mi (6,511.38 km) |
| Montemor-o-Novo to McAlester (Oklahoma) | 4,654.44 mi (7,490.59 km) |
| Montemor-o-Novo to McAllen (Texas) | 5,112.95 mi (8,228.49 km) |
| Montemor-o-Novo to McCalla (Alabama) | 4,283.43 mi (6,893.51 km) |
| Montemor-o-Novo to McComb (Mississippi) | 4,528.91 mi (7,288.57 km) |
| Montemor-o-Novo to McDonough (Georgia) | 4,133.88 mi (6,652.84 km) |
| Montemor-o-Novo to McFarland (California) | 5,675.68 mi (9,134.13 km) |
| Montemor-o-Novo to McHenry (Illinois) | 4,052.93 mi (6,522.56 km) |
