| Walkden to Mangualde | 926.99 mi (1,491.84 km) |
| Walkden to Marco de Canavezes | 893.41 mi (1,437.80 km) |
| Walkden to Marinha Grande | 999.86 mi (1,609.11 km) |
| Walkden to Massama | 1,070.87 mi (1,723.39 km) |
| Walkden to Matosinhos | 901.35 mi (1,450.58 km) |
| Walkden to Mealhada | 950.86 mi (1,530.27 km) |
| Walkden to Melgaco | 833.14 mi (1,340.81 km) |
| Walkden to Melres | 904.68 mi (1,455.94 km) |
| Walkden to Mira | 951.55 mi (1,531.38 km) |
| Walkden to Miranda do Corvo | 968.18 mi (1,558.13 km) |
| Walkden to Mirandela | 860.72 mi (1,385.20 km) |
| Walkden to Mogadouro | 865.72 mi (1,393.24 km) |
| Walkden to Moimenta da Beira | 899.95 mi (1,448.33 km) |
| Walkden to Moita | 1,073.90 mi (1,728.27 km) |
| Walkden to Moncao | 839.23 mi (1,350.61 km) |
