| Morfelden-Walldorf to Marco de Canavezes | 1,008.92 mi (1,623.71 km) |
| Morfelden-Walldorf to Marinha Grande | 1,107.46 mi (1,782.29 km) |
| Morfelden-Walldorf to Massama | 1,169.80 mi (1,882.61 km) |
| Morfelden-Walldorf to Matosinhos | 1,030.04 mi (1,657.69 km) |
| Morfelden-Walldorf to Mealhada | 1,058.44 mi (1,703.40 km) |
| Morfelden-Walldorf to Melgaco | 970.85 mi (1,562.43 km) |
| Morfelden-Walldorf to Melres | 1,023.95 mi (1,647.88 km) |
| Morfelden-Walldorf to Mira | 1,066.70 mi (1,716.68 km) |
| Morfelden-Walldorf to Miranda do Corvo | 1,067.93 mi (1,718.66 km) |
| Morfelden-Walldorf to Mirandela | 957.95 mi (1,541.67 km) |
| Morfelden-Walldorf to Mogadouro | 947.82 mi (1,525.36 km) |
| Morfelden-Walldorf to Moimenta da Beira | 998.30 mi (1,606.61 km) |
| Morfelden-Walldorf to Moita | 1,164.68 mi (1,874.37 km) |
| Morfelden-Walldorf to Moncao | 981.17 mi (1,579.04 km) |
| Morfelden-Walldorf to Montalegre | 965.54 mi (1,553.89 km) |
