| Astorga to Mangualde | 155.34 mi (250.00 km) |
| Astorga to Marco de Canavezes | 138.96 mi (223.64 km) |
| Astorga to Marinha Grande | 239.46 mi (385.38 km) |
| Astorga to Massama | 306.22 mi (492.82 km) |
| Astorga to Matosinhos | 161.85 mi (260.47 km) |
| Astorga to Mealhada | 189.34 mi (304.72 km) |
| Astorga to Melgaco | 115.07 mi (185.20 km) |
| Astorga to Melres | 154.12 mi (248.03 km) |
| Astorga to Mira | 196.73 mi (316.60 km) |
| Astorga to Miranda do Corvo | 201.12 mi (323.67 km) |
| Astorga to Mirandela | 88.46 mi (142.37 km) |
| Astorga to Mogadouro | 84.72 mi (136.34 km) |
| Astorga to Moimenta da Beira | 129.76 mi (208.82 km) |
| Astorga to Moita | 304.51 mi (490.06 km) |
| Astorga to Moncao | 126.40 mi (203.43 km) |
