| Rhondda to Burlingame (California) | 5,259.13 mi (8,463.76 km) |
| Rhondda to Burlington (Iowa) | 4,002.04 mi (6,440.66 km) |
| Rhondda to Burlington (Kentucky) | 3,834.36 mi (6,170.80 km) |
| Rhondda to Burlington (North Carolina) | 3,756.53 mi (6,045.56 km) |
| Rhondda to Burlington (Vermont) | 3,136.83 mi (5,048.25 km) |
| Rhondda to Burlington (Wisconsin) | 3,806.44 mi (6,125.87 km) |
| Rhondda to Burnsville (Minnesota) | 3,898.44 mi (6,273.93 km) |
| Rhondda to Burr Ridge (Illinois) | 3,835.05 mi (6,171.92 km) |
| Rhondda to Burton (Michigan) | 3,611.87 mi (5,812.75 km) |
| Rhondda to Burtonsville (Maryland) | 3,514.06 mi (5,655.34 km) |
| Rhondda to Butler (Pennsylvania) | 3,557.73 mi (5,725.61 km) |
| Rhondda to Butte (Montana) | 4,500.10 mi (7,242.21 km) |
| Rhondda to Byram (Mississippi) | 4,387.05 mi (7,060.28 km) |
| Rhondda to Cabot (Arkansas) | 4,318.60 mi (6,950.12 km) |
| Rhondda to Cadillac (Michigan) | 3,626.82 mi (5,836.81 km) |
