| Portchester to Masanasa | 790.76 mi (1,272.61 km) |
| Portchester to Masquefa | 660.17 mi (1,062.44 km) |
| Portchester to Matadepera | 655.61 mi (1,055.10 km) |
| Portchester to Mazarron | 915.10 mi (1,472.71 km) |
| Portchester to Meco | 718.68 mi (1,156.60 km) |
| Portchester to Medina del Campo | 683.70 mi (1,100.32 km) |
| Portchester to Medina Sidonia | 1,021.21 mi (1,643.48 km) |
| Portchester to Mejorada del Campo | 729.86 mi (1,174.60 km) |
| Portchester to Meliana | 782.67 mi (1,259.58 km) |
| Portchester to Mengibar | 899.17 mi (1,447.08 km) |
| Portchester to Merida | 863.14 mi (1,389.09 km) |
| Portchester to Miajadas | 842.73 mi (1,356.24 km) |
| Portchester to Mieres | 568.19 mi (914.41 km) |
| Portchester to Miguelturra | 831.94 mi (1,338.88 km) |
| Portchester to Mijas | 999.24 mi (1,608.13 km) |
