| Rhondda to Alum Rock (California) | 5,254.81 mi (8,456.79 km) |
| Rhondda to Alvin (Texas) | 4,731.04 mi (7,613.88 km) |
| Rhondda to Amarillo (Texas) | 4,685.63 mi (7,540.80 km) |
| Rhondda to Amelia (Ohio) | 3,814.14 mi (6,138.26 km) |
| Rhondda to American Canyon (California) | 5,221.85 mi (8,403.76 km) |
| Rhondda to American Fork (Utah) | 4,766.11 mi (7,670.32 km) |
| Rhondda to Americus (Georgia) | 4,144.25 mi (6,669.52 km) |
| Rhondda to Ames (Iowa) | 4,039.05 mi (6,500.22 km) |
| Rhondda to Amherst (Ohio) | 3,627.38 mi (5,837.70 km) |
| Rhondda to Ammon (Idaho) | 4,606.33 mi (7,413.17 km) |
| Rhondda to Amsterdam (New York) | 3,238.15 mi (5,211.31 km) |
| Rhondda to Anacortes (Washington) | 4,649.05 mi (7,481.92 km) |
| Rhondda to Anaheim (California) | 5,327.62 mi (8,573.98 km) |
| Rhondda to Anchorage (Alaska) | 4,418.73 mi (7,111.27 km) |
| Rhondda to Anderson (California) | 5,093.43 mi (8,197.09 km) |
