| Seclin to Masquefa | 627.62 mi (1,010.06 km) |
| Seclin to Matadepera | 619.88 mi (997.60 km) |
| Seclin to Mazarron | 919.95 mi (1,480.52 km) |
| Seclin to Meco | 755.23 mi (1,215.43 km) |
| Seclin to Medina del Campo | 743.45 mi (1,196.46 km) |
| Seclin to Medina Sidonia | 1,069.41 mi (1,721.06 km) |
| Seclin to Mejorada del Campo | 766.48 mi (1,233.54 km) |
| Seclin to Meliana | 778.93 mi (1,253.56 km) |
| Seclin to Mengibar | 931.75 mi (1,499.51 km) |
| Seclin to Merida | 925.14 mi (1,488.87 km) |
| Seclin to Miajadas | 903.30 mi (1,453.72 km) |
| Seclin to Mieres | 652.57 mi (1,050.21 km) |
| Seclin to Miguelturra | 869.45 mi (1,399.24 km) |
| Seclin to Mijas | 1,035.90 mi (1,667.13 km) |
| Seclin to Miranda de Ebro | 612.21 mi (985.25 km) |
