| Llantrisant to Massarosa | 826.82 mi (1,330.63 km) |
| Llantrisant to Matelica | 952.93 mi (1,533.59 km) |
| Llantrisant to Matera | 1,209.88 mi (1,947.11 km) |
| Llantrisant to Matino | 1,297.91 mi (2,088.79 km) |
| Llantrisant to Mazzarino | 1,304.80 mi (2,099.88 km) |
| Llantrisant to Meda | 700.71 mi (1,127.68 km) |
| Llantrisant to Medesano | 777.75 mi (1,251.67 km) |
| Llantrisant to Medicina | 845.40 mi (1,360.53 km) |
| Llantrisant to Meldola | 876.80 mi (1,411.07 km) |
| Llantrisant to Melegnano | 720.29 mi (1,159.20 km) |
| Llantrisant to Melendugno | 1,294.12 mi (2,082.68 km) |
| Llantrisant to Melfi | 1,158.55 mi (1,864.50 km) |
| Llantrisant to Melilli | 1,340.93 mi (2,158.02 km) |
| Llantrisant to Melito di Napoli | 1,111.62 mi (1,788.98 km) |
| Llantrisant to Melito di Porto Salvo | 1,322.90 mi (2,129.00 km) |
