| Llantwit Major to Marshall (Minnesota) | 4,010.12 mi (6,453.67 km) |
| Llantwit Major to Marshall (Missouri) | 4,166.60 mi (6,705.49 km) |
| Llantwit Major to Marshall (Texas) | 4,535.90 mi (7,299.82 km) |
| Llantwit Major to Marshalltown (Iowa) | 4,016.71 mi (6,464.26 km) |
| Llantwit Major to Marshfield (Wisconsin) | 3,793.44 mi (6,104.95 km) |
| Llantwit Major to Martha Lake (Washington) | 4,683.69 mi (7,537.66 km) |
| Llantwit Major to Martin (Tennessee) | 4,128.94 mi (6,644.89 km) |
| Llantwit Major to Martinez (California) | 5,236.25 mi (8,426.92 km) |
| Llantwit Major to Martinez (Georgia) | 3,987.36 mi (6,417.04 km) |
| Llantwit Major to Martinsburg (West Virginia) | 3,543.70 mi (5,703.03 km) |
| Llantwit Major to Martinsville (Indiana) | 3,887.55 mi (6,256.41 km) |
| Llantwit Major to Martinsville (New Jersey) | 3,353.89 mi (5,397.57 km) |
| Llantwit Major to Martinsville (Virginia) | 3,746.43 mi (6,029.30 km) |
| Llantwit Major to Maryland City (Maryland) | 3,511.07 mi (5,650.52 km) |
| Llantwit Major to Maryland Heights (Missouri) | 4,079.65 mi (6,565.57 km) |
