| Alliance to Mangualde | 3,717.54 mi (5,982.80 km) |
| Alliance to Marco de Canavezes | 3,681.77 mi (5,925.24 km) |
| Alliance to Marinha Grande | 3,688.14 mi (5,935.49 km) |
| Alliance to Massama | 3,702.50 mi (5,958.59 km) |
| Alliance to Matosinhos | 3,655.97 mi (5,883.71 km) |
| Alliance to Mealhada | 3,691.77 mi (5,941.32 km) |
| Alliance to Melgaco | 3,648.75 mi (5,872.09 km) |
| Alliance to Melres | 3,673.53 mi (5,911.98 km) |
| Alliance to Mira | 3,676.85 mi (5,917.33 km) |
| Alliance to Miranda do Corvo | 3,705.93 mi (5,964.11 km) |
| Alliance to Mirandela | 3,717.95 mi (5,983.46 km) |
| Alliance to Mogadouro | 3,744.21 mi (6,025.72 km) |
| Alliance to Moimenta da Beira | 3,713.05 mi (5,975.57 km) |
| Alliance to Moita | 3,719.85 mi (5,986.52 km) |
| Alliance to Moncao | 3,640.10 mi (5,858.17 km) |
