| Ponte da Barca to Mauldin (South Carolina) | 3,912.20 mi (6,296.07 km) |
| Ponte da Barca to Maumee (Ohio) | 3,748.11 mi (6,031.99 km) |
| Ponte da Barca to Maumelle (Arkansas) | 4,392.63 mi (7,069.25 km) |
| Ponte da Barca to Mayagüez (Puerto Rico) | 3,789.11 mi (6,097.98 km) |
| Ponte da Barca to Mayfield Heights (Ohio) | 3,647.81 mi (5,870.58 km) |
| Ponte da Barca to Mays Chapel (Maryland) | 3,485.13 mi (5,608.77 km) |
| Ponte da Barca to Maywood (California) | 5,568.11 mi (8,961.01 km) |
| Ponte da Barca to Maywood (Illinois) | 3,928.13 mi (6,321.71 km) |
| Ponte da Barca to McAlester (Oklahoma) | 4,546.93 mi (7,317.58 km) |
| Ponte da Barca to McAllen (Texas) | 5,026.61 mi (8,089.54 km) |
| Ponte da Barca to McCalla (Alabama) | 4,195.83 mi (6,752.53 km) |
| Ponte da Barca to McComb (Mississippi) | 4,441.99 mi (7,148.70 km) |
| Ponte da Barca to McDonough (Georgia) | 4,050.79 mi (6,519.12 km) |
| Ponte da Barca to McFarland (California) | 5,528.21 mi (8,896.80 km) |
| Ponte da Barca to McHenry (Illinois) | 3,932.96 mi (6,329.49 km) |
