| Cwmbran to Miranda de Ebro | 619.76 mi (997.41 km) |
| Cwmbran to Mislata | 850.66 mi (1,369.00 km) |
| Cwmbran to Moana | 700.94 mi (1,128.05 km) |
| Cwmbran to Moguer | 1,010.76 mi (1,626.66 km) |
| Cwmbran to Molina de Segura | 943.63 mi (1,518.63 km) |
| Cwmbran to Molins de Rey | 746.41 mi (1,201.23 km) |
| Cwmbran to Mollerusa | 716.63 mi (1,153.30 km) |
| Cwmbran to Mollet | 741.38 mi (1,193.13 km) |
| Cwmbran to Moncada | 744.24 mi (1,197.74 km) |
| Cwmbran to Moncada | 845.97 mi (1,361.45 km) |
| Cwmbran to Monforte de Lemos | 665.43 mi (1,070.91 km) |
| Cwmbran to Monforte del Cid | 923.81 mi (1,486.73 km) |
| Cwmbran to Mongat | 746.99 mi (1,202.16 km) |
| Cwmbran to Monovar | 919.23 mi (1,479.36 km) |
| Cwmbran to Monserrat | 857.44 mi (1,379.92 km) |
