| Sant Just Desvern to Mangualde | 515.49 mi (829.60 km) |
| Sant Just Desvern to Marco de Canavezes | 530.76 mi (854.18 km) |
| Sant Just Desvern to Marinha Grande | 588.28 mi (946.74 km) |
| Sant Just Desvern to Massama | 626.40 mi (1,008.10 km) |
| Sant Just Desvern to Matosinhos | 559.25 mi (900.03 km) |
| Sant Just Desvern to Mealhada | 553.77 mi (891.21 km) |
| Sant Just Desvern to Melgaco | 535.16 mi (861.26 km) |
| Sant Just Desvern to Melres | 544.46 mi (876.23 km) |
| Sant Just Desvern to Mira | 567.81 mi (913.81 km) |
| Sant Just Desvern to Miranda do Corvo | 551.68 mi (887.85 km) |
| Sant Just Desvern to Mirandela | 479.32 mi (771.40 km) |
| Sant Just Desvern to Mogadouro | 455.76 mi (733.48 km) |
| Sant Just Desvern to Moimenta da Beira | 504.33 mi (811.64 km) |
| Sant Just Desvern to Moita | 614.35 mi (988.71 km) |
| Sant Just Desvern to Moncao | 546.00 mi (878.70 km) |
