| Llantwit Major to Mancha Real | 941.06 mi (1,514.49 km) |
| Llantwit Major to Manilva | 1,041.66 mi (1,676.38 km) |
| Llantwit Major to Manises | 836.55 mi (1,346.30 km) |
| Llantwit Major to Manlleu | 704.32 mi (1,133.49 km) |
| Llantwit Major to Manresa | 714.22 mi (1,149.43 km) |
| Llantwit Major to Manzanares | 857.45 mi (1,379.93 km) |
| Llantwit Major to Manzanares el Real | 738.08 mi (1,187.82 km) |
| Llantwit Major to Maracena | 981.58 mi (1,579.71 km) |
| Llantwit Major to Marbella | 1,031.10 mi (1,659.39 km) |
| Llantwit Major to Marchena | 976.97 mi (1,572.28 km) |
| Llantwit Major to Marin | 669.37 mi (1,077.25 km) |
| Llantwit Major to Marratxi | 866.14 mi (1,393.92 km) |
| Llantwit Major to Martorell | 732.39 mi (1,178.67 km) |
| Llantwit Major to Martos | 946.16 mi (1,522.69 km) |
| Llantwit Major to Masamagrell | 831.64 mi (1,338.40 km) |
