| Hwlffordd to Montijo | 894.14 mi (1,438.97 km) |
| Hwlffordd to Montilla | 982.42 mi (1,581.04 km) |
| Hwlffordd to Montmelo | 785.36 mi (1,263.92 km) |
| Hwlffordd to Montornes del Valles | 786.36 mi (1,265.53 km) |
| Hwlffordd to Montoro | 952.76 mi (1,533.32 km) |
| Hwlffordd to Monzon | 725.06 mi (1,166.87 km) |
| Hwlffordd to Mora | 839.08 mi (1,350.37 km) |
| Hwlffordd to Moralzarzal | 770.13 mi (1,239.40 km) |
| Hwlffordd to Moron de la Frontera | 1,014.41 mi (1,632.53 km) |
| Hwlffordd to Mostoles | 794.01 mi (1,277.84 km) |
| Hwlffordd to Motril | 1,042.28 mi (1,677.39 km) |
| Hwlffordd to Muchamiel | 950.39 mi (1,529.50 km) |
| Hwlffordd to Mula | 965.42 mi (1,553.70 km) |
| Hwlffordd to Munguia | 591.77 mi (952.37 km) |
| Hwlffordd to Murcia | 972.42 mi (1,564.96 km) |
