| Santa Cruz de la Palma to Mangualde | 999.38 mi (1,608.34 km) |
| Santa Cruz de la Palma to Marco de Canavezes | 1,019.56 mi (1,640.83 km) |
| Santa Cruz de la Palma to Marinha Grande | 915.05 mi (1,472.63 km) |
| Santa Cruz de la Palma to Massama | 849.12 mi (1,366.53 km) |
| Santa Cruz de la Palma to Matosinhos | 1,003.45 mi (1,614.90 km) |
| Santa Cruz de la Palma to Mealhada | 965.47 mi (1,553.77 km) |
| Santa Cruz de la Palma to Melgaco | 1,069.68 mi (1,721.49 km) |
| Santa Cruz de la Palma to Melres | 1,005.51 mi (1,618.22 km) |
| Santa Cruz de la Palma to Mira | 959.62 mi (1,544.36 km) |
| Santa Cruz de la Palma to Miranda do Corvo | 953.41 mi (1,534.36 km) |
| Santa Cruz de la Palma to Mirandela | 1,066.07 mi (1,715.68 km) |
| Santa Cruz de la Palma to Mogadouro | 1,072.67 mi (1,726.30 km) |
| Santa Cruz de la Palma to Moimenta da Beira | 1,024.68 mi (1,649.06 km) |
| Santa Cruz de la Palma to Moita | 853.02 mi (1,372.81 km) |
| Santa Cruz de la Palma to Moncao | 1,061.27 mi (1,707.94 km) |
