| Quarteira to Mangualde | 244.95 mi (394.21 km) |
| Quarteira to Marco de Canavezes | 284.28 mi (457.51 km) |
| Quarteira to Marinha Grande | 190.61 mi (306.76 km) |
| Quarteira to Massama | 132.96 mi (213.98 km) |
| Quarteira to Matosinhos | 286.06 mi (460.37 km) |
| Quarteira to Mealhada | 229.76 mi (369.76 km) |
| Quarteira to Melgaco | 348.87 mi (561.45 km) |
| Quarteira to Melres | 276.67 mi (445.26 km) |
| Quarteira to Mira | 234.92 mi (378.06 km) |
| Quarteira to Miranda do Corvo | 209.79 mi (337.63 km) |
| Quarteira to Mirandela | 309.08 mi (497.42 km) |
| Quarteira to Mogadouro | 303.83 mi (488.96 km) |
| Quarteira to Moimenta da Beira | 271.48 mi (436.90 km) |
| Quarteira to Moita | 119.32 mi (192.03 km) |
| Quarteira to Moncao | 346.34 mi (557.39 km) |
