| Diekirch to Marco de Canavezes | 913.58 mi (1,470.26 km) |
| Diekirch to Marinha Grande | 1,014.23 mi (1,632.25 km) |
| Diekirch to Massama | 1,078.27 mi (1,735.30 km) |
| Diekirch to Matosinhos | 933.65 mi (1,502.56 km) |
| Diekirch to Mealhada | 964.60 mi (1,552.37 km) |
| Diekirch to Melgaco | 872.82 mi (1,404.66 km) |
| Diekirch to Melres | 928.42 mi (1,494.15 km) |
| Diekirch to Mira | 972.16 mi (1,564.53 km) |
| Diekirch to Miranda do Corvo | 975.06 mi (1,569.21 km) |
| Diekirch to Mirandela | 863.76 mi (1,390.08 km) |
| Diekirch to Mogadouro | 855.12 mi (1,376.18 km) |
| Diekirch to Moimenta da Beira | 904.61 mi (1,455.83 km) |
| Diekirch to Moita | 1,074.03 mi (1,728.49 km) |
| Diekirch to Moncao | 882.89 mi (1,420.87 km) |
| Diekirch to Montalegre | 869.15 mi (1,398.76 km) |
