| Sostanj to Mangualde | 1,205.86 mi (1,940.65 km) |
| Sostanj to Marco de Canavezes | 1,206.57 mi (1,941.79 km) |
| Sostanj to Marinha Grande | 1,288.13 mi (2,073.05 km) |
| Sostanj to Massama | 1,338.16 mi (2,153.57 km) |
| Sostanj to Matosinhos | 1,232.49 mi (1,983.51 km) |
| Sostanj to Mealhada | 1,245.04 mi (2,003.70 km) |
| Sostanj to Melgaco | 1,186.15 mi (1,908.92 km) |
| Sostanj to Melres | 1,221.78 mi (1,966.26 km) |
| Sostanj to Mira | 1,256.73 mi (2,022.52 km) |
| Sostanj to Miranda do Corvo | 1,248.67 mi (2,009.54 km) |
| Sostanj to Mirandela | 1,152.22 mi (1,854.32 km) |
| Sostanj to Mogadouro | 1,134.78 mi (1,826.25 km) |
| Sostanj to Moimenta da Beira | 1,187.41 mi (1,910.96 km) |
| Sostanj to Moita | 1,328.55 mi (2,138.10 km) |
| Sostanj to Moncao | 1,197.40 mi (1,927.04 km) |
