| Altenberge to Marco de Canavezes | 1,050.50 mi (1,690.62 km) |
| Altenberge to Marinha Grande | 1,153.82 mi (1,856.89 km) |
| Altenberge to Massama | 1,219.87 mi (1,963.19 km) |
| Altenberge to Matosinhos | 1,068.71 mi (1,719.92 km) |
| Altenberge to Mealhada | 1,103.54 mi (1,775.98 km) |
| Altenberge to Melgaco | 1,005.25 mi (1,617.80 km) |
| Altenberge to Melres | 1,064.97 mi (1,713.90 km) |
| Altenberge to Mira | 1,110.01 mi (1,786.39 km) |
| Altenberge to Miranda do Corvo | 1,115.35 mi (1,794.98 km) |
| Altenberge to Mirandela | 1,002.78 mi (1,613.82 km) |
| Altenberge to Mogadouro | 996.31 mi (1,603.41 km) |
| Altenberge to Moimenta da Beira | 1,044.12 mi (1,680.34 km) |
| Altenberge to Moita | 1,216.77 mi (1,958.20 km) |
| Altenberge to Moncao | 1,014.77 mi (1,633.11 km) |
| Altenberge to Montalegre | 1,004.63 mi (1,616.80 km) |
