| Llantwit Major to Montevarchi | 885.98 mi (1,425.85 km) |
| Llantwit Major to Monticello Conte Otto | 795.40 mi (1,280.07 km) |
| Llantwit Major to Montichiari | 756.88 mi (1,218.08 km) |
| Llantwit Major to Montignoso | 811.96 mi (1,306.72 km) |
| Llantwit Major to Montopoli in Val d'Arno | 849.67 mi (1,367.42 km) |
| Llantwit Major to Monza | 707.37 mi (1,138.40 km) |
| Llantwit Major to Morbegno | 695.24 mi (1,118.89 km) |
| Llantwit Major to Mori | 761.81 mi (1,226.02 km) |
| Llantwit Major to Morlupo | 986.87 mi (1,588.21 km) |
| Llantwit Major to Morrovalle | 970.78 mi (1,562.33 km) |
| Llantwit Major to Mortara | 702.98 mi (1,131.34 km) |
| Llantwit Major to Mosciano Sant'Angelo | 1,008.15 mi (1,622.47 km) |
| Llantwit Major to Motta di Livenza | 829.00 mi (1,334.15 km) |
| Llantwit Major to Motta Sant'Anastasia | 1,315.72 mi (2,117.45 km) |
| Llantwit Major to Mottola | 1,226.71 mi (1,974.19 km) |
