| Viladecans to Mangualde | 512.40 mi (824.63 km) |
| Viladecans to Marco de Canavezes | 528.05 mi (849.82 km) |
| Viladecans to Marinha Grande | 584.83 mi (941.19 km) |
| Viladecans to Massama | 622.55 mi (1,001.89 km) |
| Viladecans to Matosinhos | 556.57 mi (895.71 km) |
| Viladecans to Mealhada | 550.61 mi (886.12 km) |
| Viladecans to Melgaco | 533.05 mi (857.86 km) |
| Viladecans to Melres | 541.69 mi (871.77 km) |
| Viladecans to Mira | 564.70 mi (908.80 km) |
| Viladecans to Miranda do Corvo | 548.36 mi (882.49 km) |
| Viladecans to Mirandela | 476.79 mi (767.31 km) |
| Viladecans to Mogadouro | 453.11 mi (729.20 km) |
| Viladecans to Moimenta da Beira | 501.47 mi (807.04 km) |
| Viladecans to Moita | 610.42 mi (982.38 km) |
| Viladecans to Moncao | 543.86 mi (875.26 km) |
