| Bals to Mangualde | 1,633.52 mi (2,628.90 km) |
| Bals to Marco de Canavezes | 1,639.60 mi (2,638.68 km) |
| Bals to Marinha Grande | 1,712.25 mi (2,755.60 km) |
| Bals to Massama | 1,755.45 mi (2,825.12 km) |
| Bals to Matosinhos | 1,666.71 mi (2,682.31 km) |
| Bals to Mealhada | 1,672.76 mi (2,692.05 km) |
| Bals to Melgaco | 1,625.93 mi (2,616.68 km) |
| Bals to Melres | 1,654.51 mi (2,662.67 km) |
| Bals to Mira | 1,685.55 mi (2,712.63 km) |
| Bals to Miranda do Corvo | 1,673.86 mi (2,693.82 km) |
| Bals to Mirandela | 1,585.37 mi (2,551.40 km) |
| Bals to Mogadouro | 1,565.66 mi (2,519.69 km) |
| Bals to Moimenta da Beira | 1,617.66 mi (2,603.37 km) |
| Bals to Moita | 1,744.01 mi (2,806.71 km) |
| Bals to Moncao | 1,637.27 mi (2,634.92 km) |
