| Somero to Marco de Canavezes | 1,891.71 mi (3,044.42 km) |
| Somero to Marinha Grande | 1,997.02 mi (3,213.89 km) |
| Somero to Massama | 2,064.67 mi (3,322.77 km) |
| Somero to Matosinhos | 1,907.79 mi (3,070.29 km) |
| Somero to Mealhada | 1,946.41 mi (3,132.44 km) |
| Somero to Melgaco | 1,842.04 mi (2,964.48 km) |
| Somero to Melres | 1,905.67 mi (3,066.89 km) |
| Somero to Mira | 1,951.74 mi (3,141.03 km) |
| Somero to Miranda do Corvo | 1,959.42 mi (3,153.38 km) |
| Somero to Mirandela | 1,846.36 mi (2,971.42 km) |
| Somero to Mogadouro | 1,841.76 mi (2,964.03 km) |
| Somero to Moimenta da Beira | 1,887.87 mi (3,038.23 km) |
| Somero to Moita | 2,062.58 mi (3,319.40 km) |
| Somero to Moncao | 1,850.79 mi (2,978.57 km) |
| Somero to Montalegre | 1,844.75 mi (2,968.83 km) |
