| San Gwann to Mauldin (South Carolina) | 5,193.47 mi (8,358.07 km) |
| San Gwann to Maumee (Ohio) | 4,998.32 mi (8,044.02 km) |
| San Gwann to Maumelle (Arkansas) | 5,653.61 mi (9,098.61 km) |
| San Gwann to Mayagüez (Puerto Rico) | 5,031.49 mi (8,097.41 km) |
| San Gwann to Mayfield Heights (Ohio) | 4,903.45 mi (7,891.34 km) |
| San Gwann to Mays Chapel (Maryland) | 4,759.64 mi (7,659.91 km) |
| San Gwann to Maywood (California) | 6,723.58 mi (10,820.56 km) |
| San Gwann to Maywood (Illinois) | 5,165.54 mi (8,313.13 km) |
| San Gwann to McAlester (Oklahoma) | 5,798.32 mi (9,331.49 km) |
| San Gwann to McAllen (Texas) | 6,303.55 mi (10,144.58 km) |
| San Gwann to McCalla (Alabama) | 5,473.88 mi (8,809.36 km) |
| San Gwann to McComb (Mississippi) | 5,719.99 mi (9,205.43 km) |
| San Gwann to McDonough (Georgia) | 5,333.01 mi (8,582.65 km) |
| San Gwann to McFarland (California) | 6,665.28 mi (10,726.73 km) |
| San Gwann to McHenry (Illinois) | 5,166.22 mi (8,314.23 km) |
