| Huedin to Mangualde | 1,585.53 mi (2,551.67 km) |
| Huedin to Marco de Canavezes | 1,586.63 mi (2,553.43 km) |
| Huedin to Marinha Grande | 1,667.44 mi (2,683.49 km) |
| Huedin to Massama | 1,716.39 mi (2,762.26 km) |
| Huedin to Matosinhos | 1,612.58 mi (2,595.20 km) |
| Huedin to Mealhada | 1,624.74 mi (2,614.77 km) |
| Huedin to Melgaco | 1,566.05 mi (2,520.32 km) |
| Huedin to Melres | 1,601.83 mi (2,577.89 km) |
| Huedin to Mira | 1,636.55 mi (2,633.77 km) |
| Huedin to Miranda do Corvo | 1,628.08 mi (2,620.15 km) |
| Huedin to Mirandela | 1,532.27 mi (2,465.95 km) |
| Huedin to Mogadouro | 1,514.70 mi (2,437.67 km) |
| Huedin to Moimenta da Beira | 1,567.31 mi (2,522.34 km) |
| Huedin to Moita | 1,706.39 mi (2,746.17 km) |
| Huedin to Moncao | 1,577.29 mi (2,538.41 km) |
