| Sindirgi to Mangualde | 1,893.29 mi (3,046.96 km) |
| Sindirgi to Marco de Canavezes | 1,907.43 mi (3,069.71 km) |
| Sindirgi to Marinha Grande | 1,964.52 mi (3,161.59 km) |
| Sindirgi to Massama | 1,996.68 mi (3,213.34 km) |
| Sindirgi to Matosinhos | 1,935.73 mi (3,115.26 km) |
| Sindirgi to Mealhada | 1,931.49 mi (3,108.43 km) |
| Sindirgi to Melgaco | 1,905.29 mi (3,066.27 km) |
| Sindirgi to Melres | 1,921.46 mi (3,092.29 km) |
| Sindirgi to Mira | 1,945.60 mi (3,131.14 km) |
| Sindirgi to Miranda do Corvo | 1,928.81 mi (3,104.12 km) |
| Sindirgi to Mirandela | 1,854.88 mi (2,985.14 km) |
| Sindirgi to Mogadouro | 1,832.27 mi (2,948.75 km) |
| Sindirgi to Moimenta da Beira | 1,881.77 mi (3,028.42 km) |
| Sindirgi to Moita | 1,983.02 mi (3,191.37 km) |
| Sindirgi to Moncao | 1,916.49 mi (3,084.30 km) |
