| Castellaneta to Masquefa | 788.88 mi (1,269.59 km) |
| Castellaneta to Matadepera | 777.94 mi (1,251.98 km) |
| Castellaneta to Mazarron | 998.46 mi (1,606.87 km) |
| Castellaneta to Meco | 1,060.58 mi (1,706.83 km) |
| Castellaneta to Medina del Campo | 1,137.87 mi (1,831.23 km) |
| Castellaneta to Medina Sidonia | 1,263.93 mi (2,034.10 km) |
| Castellaneta to Mejorada del Campo | 1,065.05 mi (1,714.04 km) |
| Castellaneta to Meliana | 915.37 mi (1,473.15 km) |
| Castellaneta to Mengibar | 1,121.48 mi (1,804.86 km) |
| Castellaneta to Merida | 1,237.82 mi (1,992.08 km) |
| Castellaneta to Miajadas | 1,220.10 mi (1,963.55 km) |
| Castellaneta to Mieres | 1,177.32 mi (1,894.72 km) |
| Castellaneta to Miguelturra | 1,111.88 mi (1,789.40 km) |
| Castellaneta to Mijas | 1,193.86 mi (1,921.33 km) |
| Castellaneta to Miranda de Ebro | 1,032.83 mi (1,662.17 km) |
