| Plympton to Mangualde | 699.10 mi (1,125.09 km) |
| Plympton to Marco de Canavezes | 665.54 mi (1,071.09 km) |
| Plympton to Marinha Grande | 772.10 mi (1,242.57 km) |
| Plympton to Massama | 843.09 mi (1,356.83 km) |
| Plympton to Matosinhos | 673.80 mi (1,084.38 km) |
| Plympton to Mealhada | 723.00 mi (1,163.56 km) |
| Plympton to Melgaco | 605.56 mi (974.55 km) |
| Plympton to Melres | 676.90 mi (1,089.37 km) |
| Plympton to Mira | 723.82 mi (1,164.88 km) |
| Plympton to Miranda do Corvo | 740.27 mi (1,191.35 km) |
| Plympton to Mirandela | 632.96 mi (1,018.65 km) |
| Plympton to Mogadouro | 638.38 mi (1,027.38 km) |
| Plympton to Moimenta da Beira | 672.07 mi (1,081.59 km) |
| Plympton to Moita | 846.02 mi (1,361.53 km) |
| Plympton to Moncao | 611.84 mi (984.66 km) |
