| Diest to Marco de Canavezes | 924.02 mi (1,487.06 km) |
| Diest to Marinha Grande | 1,027.71 mi (1,653.94 km) |
| Diest to Massama | 1,094.16 mi (1,760.88 km) |
| Diest to Matosinhos | 941.99 mi (1,515.98 km) |
| Diest to Mealhada | 977.35 mi (1,572.90 km) |
| Diest to Melgaco | 878.33 mi (1,413.54 km) |
| Diest to Melres | 938.42 mi (1,510.24 km) |
| Diest to Mira | 983.63 mi (1,583.00 km) |
| Diest to Miranda do Corvo | 989.42 mi (1,592.31 km) |
| Diest to Mirandela | 876.68 mi (1,410.88 km) |
| Diest to Mogadouro | 870.69 mi (1,401.24 km) |
| Diest to Moimenta da Beira | 918.08 mi (1,477.50 km) |
| Diest to Moita | 1,091.35 mi (1,756.36 km) |
| Diest to Moncao | 887.81 mi (1,428.79 km) |
| Diest to Montalegre | 877.99 mi (1,412.98 km) |
