| Leon to Mangualde | 178.69 mi (287.58 km) |
| Leon to Marco de Canavezes | 165.11 mi (265.71 km) |
| Leon to Marinha Grande | 263.62 mi (424.26 km) |
| Leon to Massama | 329.16 mi (529.74 km) |
| Leon to Matosinhos | 188.59 mi (303.50 km) |
| Leon to Mealhada | 213.96 mi (344.34 km) |
| Leon to Melgaco | 141.75 mi (228.13 km) |
| Leon to Melres | 180.34 mi (290.23 km) |
| Leon to Mira | 222.02 mi (357.31 km) |
| Leon to Miranda do Corvo | 224.72 mi (361.65 km) |
| Leon to Mirandela | 113.27 mi (182.28 km) |
| Leon to Mogadouro | 105.82 mi (170.30 km) |
| Leon to Moimenta da Beira | 153.95 mi (247.75 km) |
| Leon to Moita | 326.63 mi (525.66 km) |
| Leon to Moncao | 153.09 mi (246.38 km) |
