| Saltash to Mangualde | 698.62 mi (1,124.32 km) |
| Saltash to Marco de Canavezes | 664.75 mi (1,069.81 km) |
| Saltash to Marinha Grande | 771.17 mi (1,241.08 km) |
| Saltash to Massama | 842.18 mi (1,355.36 km) |
| Saltash to Matosinhos | 672.71 mi (1,082.63 km) |
| Saltash to Mealhada | 722.20 mi (1,162.27 km) |
| Saltash to Melgaco | 604.49 mi (972.83 km) |
| Saltash to Melres | 676.00 mi (1,087.91 km) |
| Saltash to Mira | 722.87 mi (1,163.35 km) |
| Saltash to Miranda do Corvo | 739.58 mi (1,190.24 km) |
| Saltash to Mirandela | 632.65 mi (1,018.16 km) |
| Saltash to Mogadouro | 638.37 mi (1,027.36 km) |
| Saltash to Moimenta da Beira | 671.61 mi (1,080.85 km) |
| Saltash to Moita | 845.25 mi (1,360.30 km) |
| Saltash to Moncao | 610.66 mi (982.76 km) |
