| Halden to Marco de Canavezes | 1,501.69 mi (2,416.74 km) |
| Halden to Marinha Grande | 1,608.57 mi (2,588.74 km) |
| Halden to Massama | 1,678.11 mi (2,700.66 km) |
| Halden to Matosinhos | 1,515.13 mi (2,438.36 km) |
| Halden to Mealhada | 1,557.98 mi (2,507.32 km) |
| Halden to Melgaco | 1,447.81 mi (2,330.02 km) |
| Halden to Melres | 1,514.89 mi (2,437.97 km) |
| Halden to Mira | 1,561.75 mi (2,513.39 km) |
| Halden to Miranda do Corvo | 1,572.64 mi (2,530.92 km) |
| Halden to Mirandela | 1,460.03 mi (2,349.69 km) |
| Halden to Mogadouro | 1,458.56 mi (2,347.32 km) |
| Halden to Moimenta da Beira | 1,501.35 mi (2,416.18 km) |
| Halden to Moita | 1,677.84 mi (2,700.22 km) |
| Halden to Moncao | 1,455.74 mi (2,342.79 km) |
| Halden to Montalegre | 1,453.95 mi (2,339.91 km) |
