| West Columbia to Mangualde | 3,939.35 mi (6,339.78 km) |
| West Columbia to Marco de Canavezes | 3,907.41 mi (6,288.36 km) |
| West Columbia to Marinha Grande | 3,899.71 mi (6,275.97 km) |
| West Columbia to Massama | 3,904.71 mi (6,284.03 km) |
| West Columbia to Matosinhos | 3,880.22 mi (6,244.60 km) |
| West Columbia to Mealhada | 3,909.94 mi (6,292.44 km) |
| West Columbia to Melgaco | 3,881.87 mi (6,247.27 km) |
| West Columbia to Melres | 3,897.56 mi (6,272.51 km) |
| West Columbia to Mira | 3,894.71 mi (6,267.93 km) |
| West Columbia to Miranda do Corvo | 3,922.04 mi (6,311.91 km) |
| West Columbia to Mirandela | 3,948.52 mi (6,354.52 km) |
| West Columbia to Mogadouro | 3,974.71 mi (6,396.67 km) |
| West Columbia to Moimenta da Beira | 3,938.35 mi (6,338.17 km) |
| West Columbia to Moita | 3,921.99 mi (6,311.83 km) |
| West Columbia to Moncao | 3,872.35 mi (6,231.94 km) |
