| Aosta to Marco de Canavezes | 835.25 mi (1,344.21 km) |
| Aosta to Marinha Grande | 920.07 mi (1,480.71 km) |
| Aosta to Massama | 973.21 mi (1,566.23 km) |
| Aosta to Matosinhos | 860.73 mi (1,385.21 km) |
| Aosta to Mealhada | 875.59 mi (1,409.13 km) |
| Aosta to Melgaco | 813.20 mi (1,308.72 km) |
| Aosta to Melres | 850.51 mi (1,368.77 km) |
| Aosta to Mira | 886.78 mi (1,427.14 km) |
| Aosta to Miranda do Corvo | 880.32 mi (1,416.73 km) |
| Aosta to Mirandela | 781.03 mi (1,256.94 km) |
| Aosta to Mogadouro | 764.51 mi (1,230.36 km) |
| Aosta to Moimenta da Beira | 817.17 mi (1,315.12 km) |
| Aosta to Moita | 964.66 mi (1,552.48 km) |
| Aosta to Moncao | 824.43 mi (1,326.80 km) |
| Aosta to Montalegre | 799.17 mi (1,286.13 km) |
