| Willebroek to Masquefa | 671.79 mi (1,081.14 km) |
| Willebroek to Matadepera | 663.22 mi (1,067.35 km) |
| Willebroek to Mazarron | 971.26 mi (1,563.10 km) |
| Willebroek to Meco | 814.34 mi (1,310.55 km) |
| Willebroek to Medina del Campo | 806.43 mi (1,297.82 km) |
| Willebroek to Medina Sidonia | 1,129.24 mi (1,817.33 km) |
| Willebroek to Mejorada del Campo | 825.53 mi (1,328.57 km) |
| Willebroek to Meliana | 829.15 mi (1,334.39 km) |
| Willebroek to Mengibar | 989.13 mi (1,591.85 km) |
| Willebroek to Merida | 987.72 mi (1,589.59 km) |
| Willebroek to Miajadas | 965.74 mi (1,554.21 km) |
| Willebroek to Mieres | 718.91 mi (1,156.97 km) |
| Willebroek to Miguelturra | 928.08 mi (1,493.61 km) |
| Willebroek to Mijas | 1,093.65 mi (1,760.07 km) |
| Willebroek to Miranda de Ebro | 673.33 mi (1,083.62 km) |
