| Morpeth to Mangualde | 1,043.82 mi (1,679.87 km) |
| Morpeth to Marco de Canavezes | 1,009.95 mi (1,625.35 km) |
| Morpeth to Marinha Grande | 1,116.23 mi (1,796.40 km) |
| Morpeth to Massama | 1,187.24 mi (1,910.69 km) |
| Morpeth to Matosinhos | 1,017.51 mi (1,637.52 km) |
| Morpeth to Mealhada | 1,067.40 mi (1,717.81 km) |
| Morpeth to Melgaco | 949.35 mi (1,527.84 km) |
| Morpeth to Melres | 1,021.09 mi (1,643.28 km) |
| Morpeth to Mira | 1,067.90 mi (1,718.61 km) |
| Morpeth to Miranda do Corvo | 1,084.83 mi (1,745.86 km) |
| Morpeth to Mirandela | 977.67 mi (1,573.40 km) |
| Morpeth to Mogadouro | 982.78 mi (1,581.63 km) |
| Morpeth to Moimenta da Beira | 1,016.79 mi (1,636.37 km) |
| Morpeth to Moita | 1,190.46 mi (1,915.86 km) |
| Morpeth to Moncao | 955.28 mi (1,537.38 km) |
