| Key West to Mancha Real | 4,580.09 mi (7,370.94 km) |
| Key West to Manilva | 4,514.78 mi (7,265.83 km) |
| Key West to Manises | 4,717.24 mi (7,591.66 km) |
| Key West to Manlleu | 4,810.89 mi (7,742.38 km) |
| Key West to Manresa | 4,793.25 mi (7,714.00 km) |
| Key West to Manzanares | 4,573.42 mi (7,360.21 km) |
| Key West to Manzanares el Real | 4,522.02 mi (7,277.48 km) |
| Key West to Maracena | 4,588.55 mi (7,384.55 km) |
| Key West to Marbella | 4,532.48 mi (7,294.31 km) |
| Key West to Marchena | 4,490.99 mi (7,227.55 km) |
| Key West to Marin | 4,255.38 mi (6,848.37 km) |
| Key West to Marratxi | 4,878.75 mi (7,851.59 km) |
| Key West to Martorell | 4,802.85 mi (7,729.44 km) |
| Key West to Martos | 4,562.39 mi (7,342.46 km) |
| Key West to Masamagrell | 4,721.91 mi (7,599.18 km) |
