| Valongo to Mangualde | 55.59 mi (89.46 km) |
| Valongo to Marco de Canavezes | 18.20 mi (29.29 km) |
| Valongo to Marinha Grande | 101.62 mi (163.54 km) |
| Valongo to Massama | 172.60 mi (277.77 km) |
| Valongo to Matosinhos | 10.40 mi (16.74 km) |
| Valongo to Mealhada | 55.34 mi (89.06 km) |
| Valongo to Melgaco | 65.61 mi (105.58 km) |
| Valongo to Melres | 9.59 mi (15.44 km) |
| Valongo to Mira | 53.24 mi (85.68 km) |
| Valongo to Miranda do Corvo | 75.36 mi (121.28 km) |
| Valongo to Mirandela | 71.50 mi (115.08 km) |
| Valongo to Mogadouro | 93.20 mi (149.99 km) |
| Valongo to Moimenta da Beira | 48.26 mi (77.67 km) |
| Valongo to Moita | 176.90 mi (284.69 km) |
| Valongo to Moncao | 61.50 mi (98.98 km) |
