| Santana to Mangualde | 1,510.27 mi (2,430.54 km) |
| Santana to Marco de Canavezes | 1,512.29 mi (2,433.79 km) |
| Santana to Marinha Grande | 1,591.69 mi (2,561.58 km) |
| Santana to Massama | 1,639.75 mi (2,638.92 km) |
| Santana to Matosinhos | 1,538.49 mi (2,475.96 km) |
| Santana to Mealhada | 1,549.52 mi (2,493.71 km) |
| Santana to Melgaco | 1,493.09 mi (2,402.90 km) |
| Santana to Melres | 1,527.44 mi (2,458.18 km) |
| Santana to Mira | 1,561.51 mi (2,513.01 km) |
| Santana to Miranda do Corvo | 1,552.47 mi (2,498.45 km) |
| Santana to Mirandela | 1,457.89 mi (2,346.26 km) |
| Santana to Mogadouro | 1,439.90 mi (2,317.30 km) |
| Santana to Moimenta da Beira | 1,492.45 mi (2,401.87 km) |
| Santana to Moita | 1,629.53 mi (2,622.47 km) |
| Santana to Moncao | 1,504.37 mi (2,421.04 km) |
