| Pont-y-pwl to Mangualde | 799.00 mi (1,285.87 km) |
| Pont-y-pwl to Marco de Canavezes | 765.98 mi (1,232.72 km) |
| Pont-y-pwl to Marinha Grande | 872.68 mi (1,404.45 km) |
| Pont-y-pwl to Massama | 943.66 mi (1,518.68 km) |
| Pont-y-pwl to Matosinhos | 774.58 mi (1,246.57 km) |
| Pont-y-pwl to Mealhada | 823.43 mi (1,325.19 km) |
| Pont-y-pwl to Melgaco | 706.32 mi (1,136.72 km) |
| Pont-y-pwl to Melres | 777.48 mi (1,251.24 km) |
| Pont-y-pwl to Mira | 824.45 mi (1,326.83 km) |
| Pont-y-pwl to Miranda do Corvo | 840.54 mi (1,352.71 km) |
| Pont-y-pwl to Mirandela | 732.53 mi (1,178.89 km) |
| Pont-y-pwl to Mogadouro | 737.23 mi (1,186.46 km) |
| Pont-y-pwl to Moimenta da Beira | 771.95 mi (1,242.33 km) |
| Pont-y-pwl to Moita | 946.38 mi (1,523.05 km) |
| Pont-y-pwl to Moncao | 712.70 mi (1,146.97 km) |
