| Rhondda to Archdale (North Carolina) | 3,784.87 mi (6,091.15 km) |
| Rhondda to Arden-Arcade (California) | 5,171.06 mi (8,322.01 km) |
| Rhondda to Ardmore (Oklahoma) | 4,557.61 mi (7,334.76 km) |
| Rhondda to Ardmore (Pennsylvania) | 3,407.63 mi (5,484.06 km) |
| Rhondda to Arecibo (Puerto Rico) | 4,088.10 mi (6,579.16 km) |
| Rhondda to Arkadelphia (Arkansas) | 4,402.25 mi (7,084.73 km) |
| Rhondda to Arkansas City (Kansas) | 4,409.30 mi (7,096.08 km) |
| Rhondda to Arlington (Tennessee) | 4,210.82 mi (6,776.65 km) |
| Rhondda to Arlington (Texas) | 4,633.75 mi (7,457.29 km) |
| Rhondda to Arlington (Virginia) | 3,531.43 mi (5,683.29 km) |
| Rhondda to Arlington (Washington) | 4,653.67 mi (7,489.36 km) |
| Rhondda to Arlington Heights (Illinois) | 3,821.64 mi (6,150.33 km) |
| Rhondda to Arnold (Maryland) | 3,499.24 mi (5,631.48 km) |
| Rhondda to Arnold (Missouri) | 4,085.70 mi (6,575.29 km) |
| Rhondda to Arroyo Grande (California) | 5,343.89 mi (8,600.15 km) |
