| Alfter to Marco de Canavezes | 979.28 mi (1,575.99 km) |
| Alfter to Marinha Grande | 1,080.84 mi (1,739.45 km) |
| Alfter to Massama | 1,145.52 mi (1,843.54 km) |
| Alfter to Matosinhos | 998.76 mi (1,607.35 km) |
| Alfter to Mealhada | 1,030.98 mi (1,659.20 km) |
| Alfter to Melgaco | 936.99 mi (1,507.94 km) |
| Alfter to Melres | 994.01 mi (1,599.71 km) |
| Alfter to Mira | 1,038.20 mi (1,670.82 km) |
| Alfter to Miranda do Corvo | 1,041.87 mi (1,676.72 km) |
| Alfter to Mirandela | 930.09 mi (1,496.83 km) |
| Alfter to Mogadouro | 922.12 mi (1,484.01 km) |
| Alfter to Moimenta da Beira | 971.12 mi (1,562.87 km) |
| Alfter to Moita | 1,141.62 mi (1,837.26 km) |
| Alfter to Moncao | 946.89 mi (1,523.87 km) |
| Alfter to Montalegre | 934.34 mi (1,503.67 km) |
