| Gulf Shores to Mangualde | 4,403.08 mi (7,086.07 km) |
| Gulf Shores to Marco de Canavezes | 4,371.25 mi (7,034.85 km) |
| Gulf Shores to Marinha Grande | 4,362.99 mi (7,021.55 km) |
| Gulf Shores to Massama | 4,367.37 mi (7,028.61 km) |
| Gulf Shores to Matosinhos | 4,344.03 mi (6,991.04 km) |
| Gulf Shores to Mealhada | 4,373.54 mi (7,038.53 km) |
| Gulf Shores to Melgaco | 4,345.84 mi (6,993.95 km) |
| Gulf Shores to Melres | 4,361.36 mi (7,018.94 km) |
| Gulf Shores to Mira | 4,358.30 mi (7,014.01 km) |
| Gulf Shores to Miranda do Corvo | 4,385.54 mi (7,057.85 km) |
| Gulf Shores to Mirandela | 4,412.45 mi (7,101.15 km) |
| Gulf Shores to Mogadouro | 4,438.63 mi (7,143.29 km) |
| Gulf Shores to Moimenta da Beira | 4,402.19 mi (7,084.63 km) |
| Gulf Shores to Moita | 4,384.63 mi (7,056.37 km) |
| Gulf Shores to Moncao | 4,336.30 mi (6,978.61 km) |
