| Heerlerbaan to Marco de Canavezes | 950.51 mi (1,529.71 km) |
| Heerlerbaan to Marinha Grande | 1,053.21 mi (1,694.97 km) |
| Heerlerbaan to Massama | 1,118.81 mi (1,800.55 km) |
| Heerlerbaan to Matosinhos | 969.25 mi (1,559.86 km) |
| Heerlerbaan to Mealhada | 1,003.07 mi (1,614.28 km) |
| Heerlerbaan to Melgaco | 906.51 mi (1,458.89 km) |
| Heerlerbaan to Melres | 965.09 mi (1,553.17 km) |
| Heerlerbaan to Mira | 1,009.82 mi (1,625.15 km) |
| Heerlerbaan to Miranda do Corvo | 1,014.55 mi (1,632.76 km) |
| Heerlerbaan to Mirandela | 902.22 mi (1,451.98 km) |
| Heerlerbaan to Mogadouro | 895.23 mi (1,440.73 km) |
| Heerlerbaan to Moimenta da Beira | 943.46 mi (1,518.36 km) |
| Heerlerbaan to Moita | 1,115.45 mi (1,795.15 km) |
| Heerlerbaan to Moncao | 916.20 mi (1,474.48 km) |
| Heerlerbaan to Montalegre | 905.00 mi (1,456.46 km) |
