| Segni to Marco de Canavezes | 1,094.24 mi (1,761.01 km) |
| Segni to Marinha Grande | 1,154.06 mi (1,857.29 km) |
| Segni to Massama | 1,189.83 mi (1,914.85 km) |
| Segni to Matosinhos | 1,122.50 mi (1,806.49 km) |
| Segni to Mealhada | 1,119.51 mi (1,801.68 km) |
| Segni to Melgaco | 1,092.12 mi (1,757.59 km) |
| Segni to Melres | 1,108.36 mi (1,783.73 km) |
| Segni to Mira | 1,133.42 mi (1,824.07 km) |
| Segni to Miranda do Corvo | 1,117.60 mi (1,798.60 km) |
| Segni to Mirandela | 1,041.55 mi (1,676.22 km) |
| Segni to Mogadouro | 1,019.08 mi (1,640.05 km) |
| Segni to Moimenta da Beira | 1,068.89 mi (1,720.21 km) |
| Segni to Moita | 1,176.97 mi (1,894.15 km) |
| Segni to Moncao | 1,103.30 mi (1,775.58 km) |
| Segni to Montalegre | 1,069.98 mi (1,721.97 km) |
