| Merthyr Tudful to West Falls Church (Virginia) | 3,534.78 mi (5,688.68 km) |
| Merthyr Tudful to West Fargo (North Dakota) | 3,927.63 mi (6,320.92 km) |
| Merthyr Tudful to West Freehold (New Jersey) | 3,355.72 mi (5,400.51 km) |
| Merthyr Tudful to West Haven (Connecticut) | 3,256.64 mi (5,241.06 km) |
| Merthyr Tudful to West Haven (Utah) | 4,725.88 mi (7,605.56 km) |
| Merthyr Tudful to West Haverstraw (New York) | 3,301.43 mi (5,313.14 km) |
| Merthyr Tudful to West Hempstead (New York) | 3,309.31 mi (5,325.82 km) |
| Merthyr Tudful to West Hollywood (California) | 5,326.34 mi (8,571.91 km) |
| Merthyr Tudful to West Islip (New York) | 3,294.33 mi (5,301.72 km) |
| Merthyr Tudful to West Jordan (Utah) | 4,756.63 mi (7,655.06 km) |
| Merthyr Tudful to West Lafayette (Indiana) | 3,854.12 mi (6,202.61 km) |
| Merthyr Tudful to West Lealman (Florida) | 4,292.32 mi (6,907.82 km) |
| Merthyr Tudful to West Linn (Oregon) | 4,819.09 mi (7,755.58 km) |
| Merthyr Tudful to West Little River (Florida) | 4,285.24 mi (6,896.43 km) |
| Merthyr Tudful to West Melbourne (Florida) | 4,192.78 mi (6,747.62 km) |
