| Puerto de la Cruz to Mangualde | 978.28 mi (1,574.39 km) |
| Puerto de la Cruz to Marco de Canavezes | 1,001.38 mi (1,611.57 km) |
| Puerto de la Cruz to Marinha Grande | 895.32 mi (1,440.87 km) |
| Puerto de la Cruz to Massama | 827.39 mi (1,331.56 km) |
| Puerto de la Cruz to Matosinhos | 987.08 mi (1,588.55 km) |
| Puerto de la Cruz to Mealhada | 945.98 mi (1,522.40 km) |
| Puerto de la Cruz to Melgaco | 1,054.34 mi (1,696.79 km) |
| Puerto de la Cruz to Melres | 987.82 mi (1,589.75 km) |
| Puerto de la Cruz to Mira | 941.25 mi (1,514.80 km) |
| Puerto de la Cruz to Miranda do Corvo | 932.66 mi (1,500.97 km) |
| Puerto de la Cruz to Mirandela | 1,045.74 mi (1,682.96 km) |
| Puerto de la Cruz to Mogadouro | 1,050.55 mi (1,690.70 km) |
| Puerto de la Cruz to Moimenta da Beira | 1,004.22 mi (1,616.14 km) |
| Puerto de la Cruz to Moita | 829.81 mi (1,335.45 km) |
| Puerto de la Cruz to Moncao | 1,046.49 mi (1,684.16 km) |
