| Bockhorn to Marco de Canavezes | 1,128.97 mi (1,816.91 km) |
| Bockhorn to Marinha Grande | 1,233.57 mi (1,985.25 km) |
| Bockhorn to Massama | 1,300.72 mi (2,093.30 km) |
| Bockhorn to Matosinhos | 1,146.01 mi (1,844.32 km) |
| Bockhorn to Mealhada | 1,183.06 mi (1,903.95 km) |
| Bockhorn to Melgaco | 1,081.26 mi (1,740.12 km) |
| Bockhorn to Melres | 1,143.16 mi (1,839.74 km) |
| Bockhorn to Mira | 1,188.84 mi (1,913.26 km) |
| Bockhorn to Miranda do Corvo | 1,195.65 mi (1,924.21 km) |
| Bockhorn to Mirandela | 1,082.68 mi (1,742.41 km) |
| Bockhorn to Mogadouro | 1,077.53 mi (1,734.12 km) |
| Bockhorn to Moimenta da Beira | 1,124.16 mi (1,809.17 km) |
| Bockhorn to Moita | 1,298.33 mi (2,089.47 km) |
| Bockhorn to Moncao | 1,090.40 mi (1,754.84 km) |
| Bockhorn to Montalegre | 1,082.42 mi (1,741.99 km) |
