| Sandridge to Mangualde | 849.55 mi (1,367.22 km) |
| Sandridge to Marco de Canavezes | 820.76 mi (1,320.89 km) |
| Sandridge to Marinha Grande | 927.98 mi (1,493.44 km) |
| Sandridge to Massama | 998.26 mi (1,606.55 km) |
| Sandridge to Matosinhos | 832.82 mi (1,340.29 km) |
| Sandridge to Mealhada | 877.66 mi (1,412.46 km) |
| Sandridge to Melgaco | 765.06 mi (1,231.24 km) |
| Sandridge to Melres | 833.48 mi (1,341.36 km) |
| Sandridge to Mira | 880.54 mi (1,417.09 km) |
| Sandridge to Miranda do Corvo | 893.25 mi (1,437.55 km) |
| Sandridge to Mirandela | 781.78 mi (1,258.15 km) |
| Sandridge to Mogadouro | 782.77 mi (1,259.75 km) |
| Sandridge to Moimenta da Beira | 822.62 mi (1,323.88 km) |
| Sandridge to Moita | 999.11 mi (1,607.92 km) |
| Sandridge to Moncao | 772.66 mi (1,243.47 km) |
