| Llantrisant to Montijo | 886.70 mi (1,427.01 km) |
| Llantrisant to Montilla | 966.40 mi (1,555.27 km) |
| Llantrisant to Montmelo | 739.46 mi (1,190.05 km) |
| Llantrisant to Montornes del Valles | 740.42 mi (1,191.60 km) |
| Llantrisant to Montoro | 935.79 mi (1,506.01 km) |
| Llantrisant to Monzon | 686.37 mi (1,104.61 km) |
| Llantrisant to Mora | 819.54 mi (1,318.91 km) |
| Llantrisant to Moralzarzal | 751.37 mi (1,209.21 km) |
| Llantrisant to Moron de la Frontera | 1,001.48 mi (1,611.72 km) |
| Llantrisant to Mostoles | 774.80 mi (1,246.92 km) |
| Llantrisant to Motril | 1,022.05 mi (1,644.83 km) |
| Llantrisant to Muchamiel | 918.12 mi (1,477.57 km) |
| Llantrisant to Mula | 937.25 mi (1,508.35 km) |
| Llantrisant to Munguia | 566.22 mi (911.24 km) |
| Llantrisant to Murcia | 942.95 mi (1,517.54 km) |
