| Pencoed to Mangualde | 781.16 mi (1,257.16 km) |
| Pencoed to Marco de Canavezes | 747.56 mi (1,203.08 km) |
| Pencoed to Marinha Grande | 854.05 mi (1,374.46 km) |
| Pencoed to Massama | 925.06 mi (1,488.74 km) |
| Pencoed to Matosinhos | 755.64 mi (1,216.09 km) |
| Pencoed to Mealhada | 805.02 mi (1,295.55 km) |
| Pencoed to Melgaco | 687.42 mi (1,106.29 km) |
| Pencoed to Melres | 758.87 mi (1,221.28 km) |
| Pencoed to Mira | 805.76 mi (1,296.75 km) |
| Pencoed to Miranda do Corvo | 822.32 mi (1,323.39 km) |
| Pencoed to Mirandela | 714.99 mi (1,150.66 km) |
| Pencoed to Mogadouro | 720.27 mi (1,159.15 km) |
| Pencoed to Moimenta da Beira | 754.13 mi (1,213.66 km) |
| Pencoed to Moita | 928.04 mi (1,493.54 km) |
| Pencoed to Moncao | 693.60 mi (1,116.24 km) |
