| Llantrisant to Lye | 82.96 mi (133.51 km) |
| Llantrisant to Lymington | 96.18 mi (154.79 km) |
| Llantrisant to Lymm | 132.75 mi (213.64 km) |
| Llantrisant to Mablethorpe | 197.19 mi (317.34 km) |
| Llantrisant to Macclesfield | 129.15 mi (207.85 km) |
| Llantrisant to Mackworth | 123.33 mi (198.49 km) |
| Llantrisant to Madeley | 85.28 mi (137.24 km) |
| Llantrisant to Maesteg | 12.71 mi (20.45 km) |
| Llantrisant to Maghull | 137.68 mi (221.57 km) |
| Llantrisant to Maidenhead | 114.22 mi (183.81 km) |
| Llantrisant to Maidstone | 169.27 mi (272.41 km) |
| Llantrisant to Maldon | 174.18 mi (280.31 km) |
| Llantrisant to Maltby | 158.86 mi (255.67 km) |
| Llantrisant to Manchester | 142.04 mi (228.58 km) |
| Llantrisant to Mansfield | 143.91 mi (231.60 km) |
