| Westhoughton to Mangualde | 927.03 mi (1,491.91 km) |
| Westhoughton to Marco de Canavezes | 893.26 mi (1,437.57 km) |
| Westhoughton to Marinha Grande | 999.63 mi (1,608.76 km) |
| Westhoughton to Massama | 1,070.65 mi (1,723.04 km) |
| Westhoughton to Matosinhos | 901.03 mi (1,450.07 km) |
| Westhoughton to Mealhada | 950.72 mi (1,530.03 km) |
| Westhoughton to Melgaco | 832.84 mi (1,340.33 km) |
| Westhoughton to Melres | 904.47 mi (1,455.61 km) |
| Westhoughton to Mira | 951.32 mi (1,530.99 km) |
| Westhoughton to Miranda do Corvo | 968.10 mi (1,558.00 km) |
| Westhoughton to Mirandela | 860.86 mi (1,385.42 km) |
| Westhoughton to Mogadouro | 866.02 mi (1,393.73 km) |
| Westhoughton to Moimenta da Beira | 900.00 mi (1,448.41 km) |
| Westhoughton to Moita | 1,073.77 mi (1,728.06 km) |
| Westhoughton to Moncao | 838.87 mi (1,350.03 km) |
