| Cosham to Mangualde | 776.84 mi (1,250.20 km) |
| Cosham to Marco de Canavezes | 748.14 mi (1,204.01 km) |
| Cosham to Marinha Grande | 855.35 mi (1,376.55 km) |
| Cosham to Massama | 925.60 mi (1,489.60 km) |
| Cosham to Matosinhos | 760.35 mi (1,223.67 km) |
| Cosham to Mealhada | 805.01 mi (1,295.53 km) |
| Cosham to Melgaco | 692.66 mi (1,114.73 km) |
| Cosham to Melres | 760.90 mi (1,224.55 km) |
| Cosham to Mira | 807.95 mi (1,300.26 km) |
| Cosham to Miranda do Corvo | 820.56 mi (1,320.56 km) |
| Cosham to Mirandela | 709.07 mi (1,141.13 km) |
| Cosham to Mogadouro | 710.10 mi (1,142.80 km) |
| Cosham to Moimenta da Beira | 749.91 mi (1,206.86 km) |
| Cosham to Moita | 926.41 mi (1,490.91 km) |
| Cosham to Moncao | 700.35 mi (1,127.10 km) |
