| Altinova to Mangualde | 1,938.91 mi (3,120.37 km) |
| Altinova to Marco de Canavezes | 1,950.37 mi (3,138.82 km) |
| Altinova to Marinha Grande | 2,012.88 mi (3,239.42 km) |
| Altinova to Massama | 2,048.68 mi (3,297.04 km) |
| Altinova to Matosinhos | 1,978.37 mi (3,183.88 km) |
| Altinova to Mealhada | 1,977.60 mi (3,182.64 km) |
| Altinova to Melgaco | 1,944.18 mi (3,128.86 km) |
| Altinova to Melres | 1,964.76 mi (3,161.97 km) |
| Altinova to Mira | 1,991.32 mi (3,204.72 km) |
| Altinova to Miranda do Corvo | 1,976.16 mi (3,180.32 km) |
| Altinova to Mirandela | 1,897.04 mi (3,053.00 km) |
| Altinova to Mogadouro | 1,875.34 mi (3,018.06 km) |
| Altinova to Moimenta da Beira | 1,925.88 mi (3,099.41 km) |
| Altinova to Moita | 2,035.67 mi (3,276.10 km) |
| Altinova to Moncao | 1,955.47 mi (3,147.03 km) |
