| Blain to Marco de Canavezes | 536.88 mi (864.02 km) |
| Blain to Marinha Grande | 642.49 mi (1,033.99 km) |
| Blain to Massama | 710.88 mi (1,144.05 km) |
| Blain to Matosinhos | 553.22 mi (890.31 km) |
| Blain to Mealhada | 591.84 mi (952.47 km) |
| Blain to Melgaco | 488.30 mi (785.84 km) |
| Blain to Melres | 550.84 mi (886.48 km) |
| Blain to Mira | 596.93 mi (960.66 km) |
| Blain to Miranda do Corvo | 605.39 mi (974.28 km) |
| Blain to Mirandela | 492.34 mi (792.34 km) |
| Blain to Mogadouro | 489.56 mi (787.88 km) |
| Blain to Moimenta da Beira | 533.84 mi (859.13 km) |
| Blain to Moita | 709.70 mi (1,142.15 km) |
| Blain to Moncao | 497.49 mi (800.63 km) |
| Blain to Montalegre | 489.93 mi (788.47 km) |
