| Leer to Marco de Canavezes | 1,103.89 mi (1,776.53 km) |
| Leer to Marinha Grande | 1,208.63 mi (1,945.11 km) |
| Leer to Massama | 1,275.92 mi (2,053.39 km) |
| Leer to Matosinhos | 1,120.78 mi (1,803.72 km) |
| Leer to Mealhada | 1,158.09 mi (1,863.77 km) |
| Leer to Melgaco | 1,055.91 mi (1,699.32 km) |
| Leer to Melres | 1,118.04 mi (1,799.31 km) |
| Leer to Mira | 1,163.79 mi (1,872.94 km) |
| Leer to Miranda do Corvo | 1,170.79 mi (1,884.20 km) |
| Leer to Mirandela | 1,057.79 mi (1,702.34 km) |
| Leer to Mogadouro | 1,052.83 mi (1,694.37 km) |
| Leer to Moimenta da Beira | 1,099.28 mi (1,769.12 km) |
| Leer to Moita | 1,273.65 mi (2,049.73 km) |
| Leer to Moncao | 1,065.01 mi (1,713.98 km) |
| Leer to Montalegre | 1,057.26 mi (1,701.50 km) |
