| Key West to Madison (New Jersey) | 1,196.87 mi (1,926.17 km) |
| Key West to Madison (Wisconsin) | 1,350.60 mi (2,173.57 km) |
| Key West to Madison Heights (Michigan) | 1,242.05 mi (1,998.89 km) |
| Key West to Madison Heights (Virginia) | 904.06 mi (1,454.95 km) |
| Key West to Madisonville (Kentucky) | 945.20 mi (1,521.15 km) |
| Key West to Magalia (California) | 2,529.91 mi (4,071.49 km) |
| Key West to Magna (Utah) | 2,075.41 mi (3,340.05 km) |
| Key West to Magnolia (Arkansas) | 916.34 mi (1,474.70 km) |
| Key West to Maili (Hawaii) | 4,798.73 mi (7,722.80 km) |
| Key West to Maitland (Florida) | 282.00 mi (453.84 km) |
| Key West to Makakilo (Hawaii) | 4,794.57 mi (7,716.11 km) |
| Key West to Malden (Massachusetts) | 1,377.61 mi (2,217.05 km) |
| Key West to Malibu (California) | 2,309.86 mi (3,717.37 km) |
| Key West to Maltby (Washington) | 2,716.24 mi (4,371.37 km) |
| Key West to Malvern (Arkansas) | 947.72 mi (1,525.21 km) |
