| Heide to Marco de Canavezes | 1,198.37 mi (1,928.59 km) |
| Heide to Marinha Grande | 1,303.19 mi (2,097.27 km) |
| Heide to Massama | 1,370.50 mi (2,205.61 km) |
| Heide to Matosinhos | 1,215.15 mi (1,955.59 km) |
| Heide to Mealhada | 1,252.64 mi (2,015.92 km) |
| Heide to Melgaco | 1,150.15 mi (1,850.98 km) |
| Heide to Melres | 1,212.50 mi (1,951.32 km) |
| Heide to Mira | 1,258.29 mi (2,025.02 km) |
| Heide to Miranda do Corvo | 1,265.37 mi (2,036.41 km) |
| Heide to Mirandela | 1,152.36 mi (1,854.54 km) |
| Heide to Mogadouro | 1,147.42 mi (1,846.60 km) |
| Heide to Moimenta da Beira | 1,193.85 mi (1,921.32 km) |
| Heide to Moita | 1,368.24 mi (2,201.96 km) |
| Heide to Moncao | 1,159.20 mi (1,865.55 km) |
| Heide to Montalegre | 1,151.70 mi (1,853.48 km) |
