| Llantwit Major to Morristown (New Jersey) | 3,341.61 mi (5,377.81 km) |
| Llantwit Major to Morristown (Tennessee) | 3,910.23 mi (6,292.90 km) |
| Llantwit Major to Morrisville (North Carolina) | 3,742.61 mi (6,023.14 km) |
| Llantwit Major to Morro Bay (California) | 5,346.27 mi (8,603.99 km) |
| Llantwit Major to Morton (Illinois) | 3,951.35 mi (6,359.08 km) |
| Llantwit Major to Morton Grove (Illinois) | 3,820.71 mi (6,148.83 km) |
| Llantwit Major to Moscow (Idaho) | 4,595.98 mi (7,396.52 km) |
| Llantwit Major to Moses Lake (Washington) | 4,640.63 mi (7,468.37 km) |
| Llantwit Major to Moss Bluff (Louisiana) | 4,602.62 mi (7,407.19 km) |
| Llantwit Major to Moss Point (Mississippi) | 4,405.22 mi (7,089.52 km) |
| Llantwit Major to Moultrie (Georgia) | 4,171.22 mi (6,712.93 km) |
| Llantwit Major to Mounds View (Minnesota) | 3,885.63 mi (6,253.31 km) |
| Llantwit Major to Mount Airy (North Carolina) | 3,785.56 mi (6,092.28 km) |
| Llantwit Major to Mount Clemens (Michigan) | 3,604.06 mi (5,800.18 km) |
| Llantwit Major to Mount Dora (Florida) | 4,196.37 mi (6,753.41 km) |
