| Cwmbran to Montijo | 897.36 mi (1,444.16 km) |
| Cwmbran to Montilla | 975.29 mi (1,569.57 km) |
| Cwmbran to Montmelo | 740.74 mi (1,192.11 km) |
| Cwmbran to Montornes del Valles | 741.69 mi (1,193.63 km) |
| Cwmbran to Montoro | 944.49 mi (1,520.02 km) |
| Cwmbran to Monzon | 689.93 mi (1,110.33 km) |
| Cwmbran to Mora | 827.77 mi (1,332.17 km) |
| Cwmbran to Moralzarzal | 759.85 mi (1,222.85 km) |
| Cwmbran to Moron de la Frontera | 1,010.98 mi (1,627.02 km) |
| Cwmbran to Mostoles | 783.15 mi (1,260.36 km) |
| Cwmbran to Motril | 1,029.98 mi (1,657.60 km) |
| Cwmbran to Muchamiel | 923.20 mi (1,485.75 km) |
| Cwmbran to Mula | 943.36 mi (1,518.20 km) |
| Cwmbran to Munguia | 573.41 mi (922.82 km) |
| Cwmbran to Murcia | 948.74 mi (1,526.85 km) |
