| Balham to Mangualde | 832.07 mi (1,339.08 km) |
| Balham to Marco de Canavezes | 804.00 mi (1,293.92 km) |
| Balham to Marinha Grande | 911.15 mi (1,466.36 km) |
| Balham to Massama | 981.24 mi (1,579.15 km) |
| Balham to Matosinhos | 816.62 mi (1,314.23 km) |
| Balham to Mealhada | 860.72 mi (1,385.20 km) |
| Balham to Melgaco | 749.07 mi (1,205.51 km) |
| Balham to Melres | 816.90 mi (1,314.67 km) |
| Balham to Mira | 863.90 mi (1,390.32 km) |
| Balham to Miranda do Corvo | 876.05 mi (1,409.86 km) |
| Balham to Mirandela | 764.21 mi (1,229.87 km) |
| Balham to Mogadouro | 764.64 mi (1,230.57 km) |
| Balham to Moimenta da Beira | 805.20 mi (1,295.84 km) |
| Balham to Moita | 981.78 mi (1,580.02 km) |
| Balham to Moncao | 756.87 mi (1,218.06 km) |
