| Dour to Marco de Canavezes | 855.65 mi (1,377.04 km) |
| Dour to Marinha Grande | 959.61 mi (1,544.34 km) |
| Dour to Massama | 1,026.32 mi (1,651.70 km) |
| Dour to Matosinhos | 873.44 mi (1,405.67 km) |
| Dour to Mealhada | 909.19 mi (1,463.21 km) |
| Dour to Melgaco | 809.64 mi (1,302.99 km) |
| Dour to Melres | 870.01 mi (1,400.15 km) |
| Dour to Mira | 915.34 mi (1,473.09 km) |
| Dour to Miranda do Corvo | 921.44 mi (1,482.91 km) |
| Dour to Mirandela | 808.60 mi (1,301.32 km) |
| Dour to Mogadouro | 802.96 mi (1,292.24 km) |
| Dour to Moimenta da Beira | 850.04 mi (1,368.00 km) |
| Dour to Moita | 1,023.71 mi (1,647.50 km) |
| Dour to Moncao | 819.09 mi (1,318.19 km) |
| Dour to Montalegre | 809.51 mi (1,302.78 km) |
