| South Hill to Mangualde | 5,167.01 mi (8,315.50 km) |
| South Hill to Marco de Canavezes | 5,123.32 mi (8,245.18 km) |
| South Hill to Marinha Grande | 5,172.27 mi (8,323.96 km) |
| South Hill to Massama | 5,212.76 mi (8,389.13 km) |
| South Hill to Matosinhos | 5,104.80 mi (8,215.38 km) |
| South Hill to Mealhada | 5,155.40 mi (8,296.81 km) |
| South Hill to Melgaco | 5,070.25 mi (8,159.77 km) |
| South Hill to Melres | 5,121.06 mi (8,241.54 km) |
| South Hill to Mira | 5,143.13 mi (8,277.06 km) |
| South Hill to Miranda do Corvo | 5,174.33 mi (8,327.28 km) |
| South Hill to Mirandela | 5,139.61 mi (8,271.41 km) |
| South Hill to Mogadouro | 5,163.08 mi (8,309.17 km) |
| South Hill to Moimenta da Beira | 5,152.06 mi (8,291.44 km) |
| South Hill to Moita | 5,228.55 mi (8,414.53 km) |
| South Hill to Moncao | 5,065.43 mi (8,152.02 km) |
