| Merthyr Tudful to Alafaya (Florida) | 4,191.60 mi (6,745.73 km) |
| Merthyr Tudful to Alameda (California) | 5,240.78 mi (8,434.23 km) |
| Merthyr Tudful to Alamo (California) | 5,228.00 mi (8,413.65 km) |
| Merthyr Tudful to Alamo (Texas) | 5,009.95 mi (8,062.73 km) |
| Merthyr Tudful to Alamogordo (New Mexico) | 4,957.95 mi (7,979.05 km) |
| Merthyr Tudful to Albany (California) | 5,234.80 mi (8,424.60 km) |
| Merthyr Tudful to Albany (Georgia) | 4,165.92 mi (6,704.39 km) |
| Merthyr Tudful to Albany (New York) | 3,232.43 mi (5,202.10 km) |
| Merthyr Tudful to Albany (Oregon) | 4,873.77 mi (7,843.57 km) |
| Merthyr Tudful to Albemarle (North Carolina) | 3,819.23 mi (6,146.46 km) |
| Merthyr Tudful to Albert Lea (Minnesota) | 3,949.97 mi (6,356.86 km) |
| Merthyr Tudful to Albertville (Alabama) | 4,118.41 mi (6,627.95 km) |
| Merthyr Tudful to Albuquerque (New Mexico) | 4,864.74 mi (7,829.04 km) |
| Merthyr Tudful to Alcoa (Tennessee) | 3,953.33 mi (6,362.26 km) |
| Merthyr Tudful to Alderwood Manor (Washington) | 4,671.17 mi (7,517.53 km) |
