| Barreiro to Masquefa | 607.13 mi (977.08 km) |
| Barreiro to Matadepera | 619.47 mi (996.94 km) |
| Barreiro to Mazarron | 427.63 mi (688.20 km) |
| Barreiro to Meco | 332.14 mi (534.53 km) |
| Barreiro to Medina del Campo | 285.20 mi (458.99 km) |
| Barreiro to Medina Sidonia | 229.90 mi (369.99 km) |
| Barreiro to Mejorada del Campo | 325.40 mi (523.68 km) |
| Barreiro to Meliana | 471.02 mi (758.04 km) |
| Barreiro to Mengibar | 289.04 mi (465.16 km) |
| Barreiro to Merida | 148.09 mi (238.33 km) |
| Barreiro to Miajadas | 164.71 mi (265.07 km) |
| Barreiro to Mieres | 360.18 mi (579.66 km) |
| Barreiro to Miguelturra | 276.20 mi (444.50 km) |
| Barreiro to Mijas | 281.44 mi (452.93 km) |
| Barreiro to Miranda de Ebro | 424.43 mi (683.05 km) |
