| Sand to Marco de Canavezes | 1,472.29 mi (2,369.43 km) |
| Sand to Marinha Grande | 1,579.35 mi (2,541.71 km) |
| Sand to Massama | 1,649.18 mi (2,654.10 km) |
| Sand to Matosinhos | 1,485.15 mi (2,390.12 km) |
| Sand to Mealhada | 1,528.83 mi (2,460.42 km) |
| Sand to Melgaco | 1,417.59 mi (2,281.39 km) |
| Sand to Melres | 1,485.31 mi (2,390.37 km) |
| Sand to Mira | 1,532.27 mi (2,465.95 km) |
| Sand to Miranda do Corvo | 1,543.81 mi (2,484.53 km) |
| Sand to Mirandela | 1,431.47 mi (2,303.73 km) |
| Sand to Mogadouro | 1,430.64 mi (2,302.40 km) |
| Sand to Moimenta da Beira | 1,472.68 mi (2,370.05 km) |
| Sand to Moita | 1,649.28 mi (2,654.25 km) |
| Sand to Moncao | 1,425.34 mi (2,293.86 km) |
| Sand to Montalegre | 1,424.47 mi (2,292.46 km) |
