| Sanlucar de Barrameda to Mangualde | 275.84 mi (443.92 km) |
| Sanlucar de Barrameda to Marco de Canavezes | 320.09 mi (515.13 km) |
| Sanlucar de Barrameda to Marinha Grande | 249.23 mi (401.10 km) |
| Sanlucar de Barrameda to Massama | 210.76 mi (339.19 km) |
| Sanlucar de Barrameda to Matosinhos | 330.20 mi (531.40 km) |
| Sanlucar de Barrameda to Mealhada | 274.40 mi (441.61 km) |
| Sanlucar de Barrameda to Melgaco | 383.51 mi (617.19 km) |
| Sanlucar de Barrameda to Melres | 316.85 mi (509.93 km) |
| Sanlucar de Barrameda to Mira | 284.12 mi (457.25 km) |
| Sanlucar de Barrameda to Miranda do Corvo | 254.08 mi (408.90 km) |
| Sanlucar de Barrameda to Mirandela | 329.05 mi (529.56 km) |
| Sanlucar de Barrameda to Mogadouro | 316.13 mi (508.77 km) |
| Sanlucar de Barrameda to Moimenta da Beira | 298.91 mi (481.05 km) |
| Sanlucar de Barrameda to Moita | 194.02 mi (312.25 km) |
| Sanlucar de Barrameda to Moncao | 383.84 mi (617.72 km) |
