| Westminster to Mangualde | 835.53 mi (1,344.66 km) |
| Westminster to Marco de Canavezes | 807.42 mi (1,299.41 km) |
| Westminster to Marinha Grande | 914.57 mi (1,471.86 km) |
| Westminster to Massama | 984.67 mi (1,584.67 km) |
| Westminster to Matosinhos | 820.00 mi (1,319.66 km) |
| Westminster to Mealhada | 864.15 mi (1,390.72 km) |
| Westminster to Melgaco | 752.42 mi (1,210.91 km) |
| Westminster to Melres | 820.30 mi (1,320.15 km) |
| Westminster to Mira | 867.31 mi (1,395.80 km) |
| Westminster to Miranda do Corvo | 879.49 mi (1,415.41 km) |
| Westminster to Mirandela | 767.68 mi (1,235.46 km) |
| Westminster to Mogadouro | 768.14 mi (1,236.21 km) |
| Westminster to Moimenta da Beira | 808.66 mi (1,301.40 km) |
| Westminster to Moita | 985.24 mi (1,585.58 km) |
| Westminster to Moncao | 760.21 mi (1,223.44 km) |
