| Langenthal to Mangualde | 896.18 mi (1,442.26 km) |
| Langenthal to Marco de Canavezes | 890.23 mi (1,432.68 km) |
| Langenthal to Marinha Grande | 981.03 mi (1,578.82 km) |
| Langenthal to Massama | 1,038.05 mi (1,670.58 km) |
| Langenthal to Matosinhos | 914.23 mi (1,471.31 km) |
| Langenthal to Mealhada | 934.47 mi (1,503.89 km) |
| Langenthal to Melgaco | 861.73 mi (1,386.82 km) |
| Langenthal to Melres | 905.53 mi (1,457.30 km) |
| Langenthal to Mira | 944.61 mi (1,520.20 km) |
| Langenthal to Miranda do Corvo | 941.09 mi (1,514.53 km) |
| Langenthal to Mirandela | 836.78 mi (1,346.67 km) |
| Langenthal to Mogadouro | 822.63 mi (1,323.89 km) |
| Langenthal to Moimenta da Beira | 874.91 mi (1,408.03 km) |
| Langenthal to Moita | 1,030.78 mi (1,658.88 km) |
| Langenthal to Moncao | 872.72 mi (1,404.51 km) |
