| Llantrisant to Mickleover | 121.53 mi (195.58 km) |
| Llantrisant to Middlesbrough | 227.70 mi (366.44 km) |
| Llantrisant to Middleton | 147.76 mi (237.80 km) |
| Llantrisant to Middlewich | 120.59 mi (194.07 km) |
| Llantrisant to Midsomer Norton | 42.42 mi (68.26 km) |
| Llantrisant to Mildenhall | 174.44 mi (280.74 km) |
| Llantrisant to Milford Haven | 72.51 mi (116.69 km) |
| Llantrisant to Mill Hill | 135.13 mi (217.47 km) |
| Llantrisant to Milngavie | 306.42 mi (493.14 km) |
| Llantrisant to Milnrow | 152.42 mi (245.30 km) |
| Llantrisant to Milton | 116.49 mi (187.47 km) |
| Llantrisant to Milton Keynes | 116.93 mi (188.17 km) |
| Llantrisant to Minehead | 23.75 mi (38.23 km) |
| Llantrisant to Minster | 180.20 mi (290.01 km) |
| Llantrisant to Mirfield | 163.82 mi (263.64 km) |
