| West Allis to Mangualde | 3,970.67 mi (6,390.17 km) |
| West Allis to Marco de Canavezes | 3,932.64 mi (6,328.98 km) |
| West Allis to Marinha Grande | 3,948.39 mi (6,354.32 km) |
| West Allis to Massama | 3,968.64 mi (6,386.90 km) |
| West Allis to Matosinhos | 3,908.04 mi (6,289.39 km) |
| West Allis to Mealhada | 3,947.60 mi (6,353.05 km) |
| West Allis to Melgaco | 3,894.73 mi (6,267.97 km) |
| West Allis to Melres | 3,925.58 mi (6,317.61 km) |
| West Allis to Mira | 3,933.05 mi (6,329.63 km) |
| West Allis to Miranda do Corvo | 3,963.00 mi (6,377.84 km) |
| West Allis to Mirandela | 3,965.04 mi (6,381.12 km) |
| West Allis to Mogadouro | 3,991.10 mi (6,423.05 km) |
| West Allis to Moimenta da Beira | 3,963.84 mi (6,379.18 km) |
| West Allis to Moita | 3,985.88 mi (6,414.66 km) |
| West Allis to Moncao | 3,886.78 mi (6,255.17 km) |
