| Glyka Nera to Marco de Canavezes | 1,708.28 mi (2,749.21 km) |
| Glyka Nera to Marinha Grande | 1,757.79 mi (2,828.88 km) |
| Glyka Nera to Massama | 1,785.12 mi (2,872.87 km) |
| Glyka Nera to Matosinhos | 1,736.83 mi (2,795.16 km) |
| Glyka Nera to Mealhada | 1,727.91 mi (2,780.80 km) |
| Glyka Nera to Melgaco | 1,711.83 mi (2,754.92 km) |
| Glyka Nera to Melres | 1,721.74 mi (2,770.88 km) |
| Glyka Nera to Mira | 1,742.45 mi (2,804.20 km) |
| Glyka Nera to Miranda do Corvo | 1,723.60 mi (2,773.86 km) |
| Glyka Nera to Mirandela | 1,657.16 mi (2,666.95 km) |
| Glyka Nera to Mogadouro | 1,633.44 mi (2,628.77 km) |
| Glyka Nera to Moimenta da Beira | 1,681.19 mi (2,705.61 km) |
| Glyka Nera to Moita | 1,770.73 mi (2,849.71 km) |
| Glyka Nera to Moncao | 1,722.83 mi (2,772.63 km) |
| Glyka Nera to Montalegre | 1,687.93 mi (2,716.46 km) |
