| Llantrisant to Melzo | 717.37 mi (1,154.50 km) |
| Llantrisant to Mendicino | 1,265.90 mi (2,037.27 km) |
| Llantrisant to Menfi | 1,248.71 mi (2,009.60 km) |
| Llantrisant to Mentana | 1,000.12 mi (1,609.54 km) |
| Llantrisant to Merano | 736.83 mi (1,185.82 km) |
| Llantrisant to Merate | 709.16 mi (1,141.28 km) |
| Llantrisant to Mercato San Severino | 1,137.36 mi (1,830.40 km) |
| Llantrisant to Mercogliano | 1,129.46 mi (1,817.70 km) |
| Llantrisant to Mesagne | 1,259.55 mi (2,027.06 km) |
| Llantrisant to Messina | 1,300.17 mi (2,092.43 km) |
| Llantrisant to Mestre | 825.45 mi (1,328.43 km) |
| Llantrisant to Mestrino | 808.73 mi (1,301.53 km) |
| Llantrisant to Milan | 710.50 mi (1,143.44 km) |
| Llantrisant to Milazzo | 1,288.18 mi (2,073.12 km) |
| Llantrisant to Minerbio | 833.33 mi (1,341.11 km) |
