| Port Huron to Mancha Real | 4,008.10 mi (6,450.42 km) |
| Port Huron to Manilva | 3,983.60 mi (6,410.98 km) |
| Port Huron to Manises | 4,089.62 mi (6,581.60 km) |
| Port Huron to Manlleu | 4,117.20 mi (6,625.99 km) |
| Port Huron to Manresa | 4,107.55 mi (6,610.47 km) |
| Port Huron to Manzanares | 3,974.90 mi (6,396.99 km) |
| Port Huron to Manzanares el Real | 3,891.03 mi (6,262.00 km) |
| Port Huron to Maracena | 4,028.82 mi (6,483.76 km) |
| Port Huron to Marbella | 3,995.86 mi (6,430.72 km) |
| Port Huron to Marchena | 3,940.90 mi (6,342.27 km) |
| Port Huron to Marin | 3,616.47 mi (5,820.14 km) |
| Port Huron to Marratxi | 4,226.56 mi (6,802.00 km) |
| Port Huron to Martorell | 4,121.30 mi (6,632.59 km) |
| Port Huron to Martos | 3,994.28 mi (6,428.18 km) |
| Port Huron to Masamagrell | 4,091.78 mi (6,585.09 km) |
