| Samorin to Mangualde | 1,333.82 mi (2,146.57 km) |
| Samorin to Marco de Canavezes | 1,331.25 mi (2,142.45 km) |
| Samorin to Marinha Grande | 1,417.48 mi (2,281.22 km) |
| Samorin to Massama | 1,470.56 mi (2,366.64 km) |
| Samorin to Matosinhos | 1,356.20 mi (2,182.59 km) |
| Samorin to Mealhada | 1,372.69 mi (2,209.14 km) |
| Samorin to Melgaco | 1,306.10 mi (2,101.97 km) |
| Samorin to Melres | 1,346.55 mi (2,167.06 km) |
| Samorin to Mira | 1,383.68 mi (2,226.81 km) |
| Samorin to Miranda do Corvo | 1,377.70 mi (2,217.19 km) |
| Samorin to Mirandela | 1,277.22 mi (2,055.49 km) |
| Samorin to Mogadouro | 1,261.36 mi (2,029.95 km) |
| Samorin to Moimenta da Beira | 1,313.98 mi (2,114.65 km) |
| Samorin to Moita | 1,461.83 mi (2,352.58 km) |
| Samorin to Moncao | 1,317.21 mi (2,119.84 km) |
