| Sondershausen to Marco de Canavezes | 1,143.06 mi (1,839.58 km) |
| Sondershausen to Marinha Grande | 1,242.63 mi (1,999.82 km) |
| Sondershausen to Massama | 1,305.62 mi (2,101.20 km) |
| Sondershausen to Matosinhos | 1,163.60 mi (1,872.63 km) |
| Sondershausen to Mealhada | 1,193.33 mi (1,920.48 km) |
| Sondershausen to Melgaco | 1,103.32 mi (1,775.62 km) |
| Sondershausen to Melres | 1,157.99 mi (1,863.61 km) |
| Sondershausen to Mira | 1,201.26 mi (1,933.24 km) |
| Sondershausen to Miranda do Corvo | 1,203.23 mi (1,936.41 km) |
| Sondershausen to Mirandela | 1,092.64 mi (1,758.43 km) |
| Sondershausen to Mogadouro | 1,083.13 mi (1,743.13 km) |
| Sondershausen to Moimenta da Beira | 1,133.23 mi (1,823.76 km) |
| Sondershausen to Moita | 1,300.78 mi (2,093.41 km) |
| Sondershausen to Moncao | 1,113.46 mi (1,791.95 km) |
| Sondershausen to Montalegre | 1,099.08 mi (1,768.80 km) |
