| Port-de-Bouc to Marco de Canavezes | 688.02 mi (1,107.26 km) |
| Port-de-Bouc to Marinha Grande | 761.47 mi (1,225.46 km) |
| Port-de-Bouc to Massama | 807.93 mi (1,300.24 km) |
| Port-de-Bouc to Matosinhos | 715.36 mi (1,151.26 km) |
| Port-de-Bouc to Mealhada | 721.07 mi (1,160.46 km) |
| Port-de-Bouc to Melgaco | 677.54 mi (1,090.40 km) |
| Port-de-Bouc to Melres | 702.85 mi (1,131.13 km) |
| Port-de-Bouc to Mira | 733.75 mi (1,180.86 km) |
| Port-de-Bouc to Miranda do Corvo | 722.70 mi (1,163.07 km) |
| Port-de-Bouc to Mirandela | 633.91 mi (1,020.18 km) |
| Port-de-Bouc to Mogadouro | 613.86 mi (987.91 km) |
| Port-de-Bouc to Moimenta da Beira | 665.79 mi (1,071.49 km) |
| Port-de-Bouc to Moita | 797.61 mi (1,283.62 km) |
| Port-de-Bouc to Moncao | 688.86 mi (1,108.62 km) |
| Port-de-Bouc to Montalegre | 658.30 mi (1,059.43 km) |
