| Spinea to Marco de Canavezes | 1,059.93 mi (1,705.80 km) |
| Spinea to Marinha Grande | 1,139.39 mi (1,833.67 km) |
| Spinea to Massama | 1,188.31 mi (1,912.40 km) |
| Spinea to Matosinhos | 1,086.26 mi (1,748.16 km) |
| Spinea to Mealhada | 1,097.03 mi (1,765.49 km) |
| Spinea to Melgaco | 1,041.90 mi (1,676.77 km) |
| Spinea to Melres | 1,075.07 mi (1,730.15 km) |
| Spinea to Mira | 1,109.00 mi (1,784.77 km) |
| Spinea to Miranda do Corvo | 1,100.10 mi (1,770.43 km) |
| Spinea to Mirandela | 1,005.54 mi (1,618.25 km) |
| Spinea to Mogadouro | 987.41 mi (1,589.09 km) |
| Spinea to Moimenta da Beira | 1,039.95 mi (1,673.64 km) |
| Spinea to Moita | 1,178.44 mi (1,896.51 km) |
| Spinea to Moncao | 1,053.20 mi (1,694.96 km) |
| Spinea to Montalegre | 1,026.13 mi (1,651.39 km) |
