| Ub to Mauldin (South Carolina) | 5,120.13 mi (8,240.06 km) |
| Ub to Maumee (Ohio) | 4,853.89 mi (7,811.58 km) |
| Ub to Maumelle (Arkansas) | 5,516.72 mi (8,878.31 km) |
| Ub to Mayagüez (Puerto Rico) | 5,210.82 mi (8,386.01 km) |
| Ub to Mayfield Heights (Ohio) | 4,771.39 mi (7,678.81 km) |
| Ub to Mays Chapel (Maryland) | 4,673.94 mi (7,521.98 km) |
| Ub to Maywood (California) | 6,416.97 mi (10,327.12 km) |
| Ub to Maywood (Illinois) | 4,995.45 mi (8,039.39 km) |
| Ub to McAlester (Oklahoma) | 5,639.08 mi (9,075.21 km) |
| Ub to McAllen (Texas) | 6,195.72 mi (9,971.05 km) |
| Ub to McCalla (Alabama) | 5,384.50 mi (8,665.51 km) |
| Ub to McComb (Mississippi) | 5,625.91 mi (9,054.03 km) |
| Ub to McDonough (Georgia) | 5,260.57 mi (8,466.07 km) |
| Ub to McFarland (California) | 6,342.12 mi (10,206.65 km) |
| Ub to McHenry (Illinois) | 4,989.58 mi (8,029.96 km) |
