| Llantwit Major to Melzo | 716.39 mi (1,152.92 km) |
| Llantwit Major to Mendicino | 1,264.19 mi (2,034.52 km) |
| Llantwit Major to Menfi | 1,245.32 mi (2,004.14 km) |
| Llantwit Major to Mentana | 998.35 mi (1,606.68 km) |
| Llantwit Major to Merano | 737.48 mi (1,186.86 km) |
| Llantwit Major to Merate | 708.33 mi (1,139.95 km) |
| Llantwit Major to Mercato San Severino | 1,135.78 mi (1,827.86 km) |
| Llantwit Major to Mercogliano | 1,127.94 mi (1,815.25 km) |
| Llantwit Major to Mesagne | 1,258.87 mi (2,025.96 km) |
| Llantwit Major to Messina | 1,297.87 mi (2,088.72 km) |
| Llantwit Major to Mestre | 825.58 mi (1,328.65 km) |
| Llantwit Major to Mestrino | 808.67 mi (1,301.42 km) |
| Llantwit Major to Milan | 709.39 mi (1,141.65 km) |
| Llantwit Major to Milazzo | 1,285.78 mi (2,069.26 km) |
| Llantwit Major to Minerbio | 832.57 mi (1,339.90 km) |
