| Spodnji Duplek to Mangualde | 1,240.16 mi (1,995.84 km) |
| Spodnji Duplek to Marco de Canavezes | 1,240.76 mi (1,996.81 km) |
| Spodnji Duplek to Marinha Grande | 1,322.46 mi (2,128.30 km) |
| Spodnji Duplek to Massama | 1,372.53 mi (2,208.88 km) |
| Spodnji Duplek to Matosinhos | 1,266.65 mi (2,038.47 km) |
| Spodnji Duplek to Mealhada | 1,279.33 mi (2,058.88 km) |
| Spodnji Duplek to Melgaco | 1,220.11 mi (1,963.58 km) |
| Spodnji Duplek to Melres | 1,255.97 mi (2,021.29 km) |
| Spodnji Duplek to Mira | 1,291.00 mi (2,077.67 km) |
| Spodnji Duplek to Miranda do Corvo | 1,282.99 mi (2,064.77 km) |
| Spodnji Duplek to Mirandela | 1,186.42 mi (1,909.35 km) |
| Spodnji Duplek to Mogadouro | 1,169.03 mi (1,881.37 km) |
| Spodnji Duplek to Moimenta da Beira | 1,221.67 mi (1,966.08 km) |
| Spodnji Duplek to Moita | 1,362.92 mi (2,193.41 km) |
| Spodnji Duplek to Moncao | 1,231.36 mi (1,981.68 km) |
