| Knic to Mangualde | 1,466.63 mi (2,360.31 km) |
| Knic to Marco de Canavezes | 1,473.78 mi (2,371.82 km) |
| Knic to Marinha Grande | 1,544.64 mi (2,485.85 km) |
| Knic to Massama | 1,586.85 mi (2,553.79 km) |
| Knic to Matosinhos | 1,501.12 mi (2,415.82 km) |
| Knic to Mealhada | 1,505.81 mi (2,423.37 km) |
| Knic to Melgaco | 1,461.91 mi (2,352.71 km) |
| Knic to Melres | 1,488.59 mi (2,395.66 km) |
| Knic to Mira | 1,518.79 mi (2,444.25 km) |
| Knic to Miranda do Corvo | 1,506.48 mi (2,424.44 km) |
| Knic to Mirandela | 1,419.68 mi (2,284.75 km) |
| Knic to Mogadouro | 1,399.52 mi (2,252.31 km) |
| Knic to Moimenta da Beira | 1,451.28 mi (2,335.62 km) |
| Knic to Moita | 1,575.22 mi (2,535.07 km) |
| Knic to Moncao | 1,473.25 mi (2,370.96 km) |
