| Sin-le-Noble to Marco de Canavezes | 832.95 mi (1,340.50 km) |
| Sin-le-Noble to Marinha Grande | 937.45 mi (1,508.68 km) |
| Sin-le-Noble to Massama | 1,004.64 mi (1,616.81 km) |
| Sin-le-Noble to Matosinhos | 850.24 mi (1,368.33 km) |
| Sin-le-Noble to Mealhada | 886.94 mi (1,427.39 km) |
| Sin-le-Noble to Melgaco | 785.93 mi (1,264.83 km) |
| Sin-le-Noble to Melres | 847.19 mi (1,363.41 km) |
| Sin-le-Noble to Mira | 892.78 mi (1,436.79 km) |
| Sin-le-Noble to Miranda do Corvo | 899.54 mi (1,447.66 km) |
| Sin-le-Noble to Mirandela | 786.56 mi (1,265.84 km) |
| Sin-le-Noble to Mogadouro | 781.56 mi (1,257.80 km) |
| Sin-le-Noble to Moimenta da Beira | 828.04 mi (1,332.60 km) |
| Sin-le-Noble to Moita | 1,002.38 mi (1,613.17 km) |
| Sin-le-Noble to Moncao | 795.23 mi (1,279.81 km) |
| Sin-le-Noble to Montalegre | 786.52 mi (1,265.78 km) |
