| Sitges to Mangualde | 501.03 mi (806.34 km) |
| Sitges to Marco de Canavezes | 517.15 mi (832.27 km) |
| Sitges to Marinha Grande | 573.05 mi (922.24 km) |
| Sitges to Massama | 610.40 mi (982.34 km) |
| Sitges to Matosinhos | 545.69 mi (878.20 km) |
| Sitges to Mealhada | 539.15 mi (867.68 km) |
| Sitges to Melgaco | 522.99 mi (841.67 km) |
| Sitges to Melres | 530.71 mi (854.09 km) |
| Sitges to Mira | 553.29 mi (890.44 km) |
| Sitges to Miranda do Corvo | 536.71 mi (863.75 km) |
| Sitges to Mirandela | 466.12 mi (750.15 km) |
| Sitges to Mogadouro | 442.28 mi (711.79 km) |
| Sitges to Moimenta da Beira | 490.37 mi (789.18 km) |
| Sitges to Moita | 598.21 mi (962.73 km) |
| Sitges to Moncao | 533.75 mi (858.99 km) |
