| Lastra a Signa to Marco de Canavezes | 994.74 mi (1,600.88 km) |
| Lastra a Signa to Marinha Grande | 1,066.22 mi (1,715.91 km) |
| Lastra a Signa to Massama | 1,110.01 mi (1,786.39 km) |
| Lastra a Signa to Matosinhos | 1,022.14 mi (1,644.97 km) |
| Lastra a Signa to Mealhada | 1,026.90 mi (1,652.64 km) |
| Lastra a Signa to Melgaco | 983.89 mi (1,583.42 km) |
| Lastra a Signa to Melres | 1,009.54 mi (1,624.69 km) |
| Lastra a Signa to Mira | 1,039.80 mi (1,673.40 km) |
| Lastra a Signa to Miranda do Corvo | 1,027.85 mi (1,654.16 km) |
| Lastra a Signa to Mirandela | 940.67 mi (1,513.87 km) |
| Lastra a Signa to Mogadouro | 920.44 mi (1,481.30 km) |
| Lastra a Signa to Moimenta da Beira | 972.21 mi (1,564.62 km) |
| Lastra a Signa to Moita | 1,098.87 mi (1,768.47 km) |
| Lastra a Signa to Moncao | 995.22 mi (1,601.65 km) |
| Lastra a Signa to Montalegre | 965.02 mi (1,553.05 km) |
