| Key Largo to Mancha Real | 4,487.07 mi (7,221.24 km) |
| Key Largo to Manilva | 4,421.39 mi (7,115.54 km) |
| Key Largo to Manises | 4,624.85 mi (7,442.97 km) |
| Key Largo to Manlleu | 4,719.58 mi (7,595.43 km) |
| Key Largo to Manresa | 4,701.80 mi (7,566.81 km) |
| Key Largo to Manzanares | 4,480.72 mi (7,211.03 km) |
| Key Largo to Manzanares el Real | 4,429.83 mi (7,129.12 km) |
| Key Largo to Maracena | 4,495.39 mi (7,234.63 km) |
| Key Largo to Marbella | 4,439.13 mi (7,144.09 km) |
| Key Largo to Marchena | 4,397.79 mi (7,077.56 km) |
| Key Largo to Marin | 4,163.56 mi (6,700.60 km) |
| Key Largo to Marratxi | 4,786.63 mi (7,703.33 km) |
| Key Largo to Martorell | 4,711.30 mi (7,582.11 km) |
| Key Largo to Martos | 4,469.34 mi (7,192.71 km) |
| Key Largo to Masamagrell | 4,629.56 mi (7,450.55 km) |
