| Alcanar to Mangualde | 432.41 mi (695.89 km) |
| Alcanar to Marco de Canavezes | 452.96 mi (728.98 km) |
| Alcanar to Marinha Grande | 499.97 mi (804.62 km) |
| Alcanar to Massama | 533.15 mi (858.02 km) |
| Alcanar to Matosinhos | 481.54 mi (774.96 km) |
| Alcanar to Mealhada | 469.40 mi (755.43 km) |
| Alcanar to Melgaco | 466.46 mi (750.70 km) |
| Alcanar to Melres | 465.67 mi (749.42 km) |
| Alcanar to Mira | 484.02 mi (778.96 km) |
| Alcanar to Miranda do Corvo | 465.13 mi (748.55 km) |
| Alcanar to Mirandela | 404.61 mi (651.15 km) |
| Alcanar to Mogadouro | 379.50 mi (610.75 km) |
| Alcanar to Moimenta da Beira | 424.53 mi (683.22 km) |
| Alcanar to Moita | 520.27 mi (837.30 km) |
| Alcanar to Moncao | 476.69 mi (767.17 km) |
