| Rhondda to Buenaventura Lakes (Florida) | 4,208.09 mi (6,772.27 km) |
| Rhondda to Buffalo (Minnesota) | 3,900.64 mi (6,277.48 km) |
| Rhondda to Buffalo (New York) | 3,427.52 mi (5,516.07 km) |
| Rhondda to Buffalo Grove (Illinois) | 3,817.54 mi (6,143.74 km) |
| Rhondda to Buford (Georgia) | 4,035.53 mi (6,494.56 km) |
| Rhondda to Bull Run (Virginia) | 3,553.07 mi (5,718.12 km) |
| Rhondda to Bullhead City (Arizona) | 5,144.80 mi (8,279.76 km) |
| Rhondda to Burbank (California) | 5,323.42 mi (8,567.22 km) |
| Rhondda to Burbank (Illinois) | 3,829.39 mi (6,162.80 km) |
| Rhondda to Burien (Washington) | 4,697.78 mi (7,560.34 km) |
| Rhondda to Burkburnett (Texas) | 4,619.43 mi (7,434.26 km) |
| Rhondda to Burke (Virginia) | 3,542.62 mi (5,701.30 km) |
| Rhondda to Burke Centre (Virginia) | 3,543.55 mi (5,702.79 km) |
| Rhondda to Burleson (Texas) | 4,651.29 mi (7,485.53 km) |
| Rhondda to Burley (Idaho) | 4,715.17 mi (7,588.34 km) |
