| Rhondda to Washington (Indiana) | 3,948.31 mi (6,354.18 km) |
| Rhondda to Washington (Missouri) | 4,104.92 mi (6,606.24 km) |
| Rhondda to Washington (Pennsylvania) | 3,602.26 mi (5,797.27 km) |
| Rhondda to Washington (Utah) | 4,998.58 mi (8,044.44 km) |
| Rhondda to Washington Court House (Ohio) | 3,758.94 mi (6,049.43 km) |
| Rhondda to Washougal (Washington) | 4,804.23 mi (7,731.66 km) |
| Rhondda to Watauga (Texas) | 4,629.89 mi (7,451.09 km) |
| Rhondda to Waterbury (Connecticut) | 3,248.37 mi (5,227.74 km) |
| Rhondda to Waterloo (Illinois) | 4,081.38 mi (6,568.34 km) |
| Rhondda to Waterloo (Iowa) | 3,969.57 mi (6,388.40 km) |
| Rhondda to Watertown (New York) | 3,265.25 mi (5,254.91 km) |
| Rhondda to Watertown (South Dakota) | 4,031.51 mi (6,488.08 km) |
| Rhondda to Watertown (Wisconsin) | 3,800.53 mi (6,116.36 km) |
| Rhondda to Watertown Town (Massachusetts) | 3,138.30 mi (5,050.60 km) |
| Rhondda to Waterville (Maine) | 2,989.75 mi (4,811.53 km) |
