| Rhondda to Watervliet (New York) | 3,227.42 mi (5,194.04 km) |
| Rhondda to Watsonville (California) | 5,278.80 mi (8,495.41 km) |
| Rhondda to Wauconda (Illinois) | 3,819.37 mi (6,146.68 km) |
| Rhondda to Waukee (Iowa) | 4,069.24 mi (6,548.81 km) |
| Rhondda to Waukegan (Illinois) | 3,804.89 mi (6,123.37 km) |
| Rhondda to Waukesha (Wisconsin) | 3,790.31 mi (6,099.92 km) |
| Rhondda to Waunakee (Wisconsin) | 3,828.02 mi (6,160.60 km) |
| Rhondda to Waupun (Wisconsin) | 3,780.92 mi (6,084.81 km) |
| Rhondda to Wausau (Wisconsin) | 3,755.33 mi (6,043.62 km) |
| Rhondda to Wauwatosa (Wisconsin) | 3,779.83 mi (6,083.05 km) |
| Rhondda to Waverly (Iowa) | 3,963.12 mi (6,378.03 km) |
| Rhondda to Waverly (Michigan) | 3,662.93 mi (5,894.92 km) |
| Rhondda to Waxahachie (Texas) | 4,637.91 mi (7,463.99 km) |
| Rhondda to Waxhaw (North Carolina) | 3,862.63 mi (6,216.31 km) |
| Rhondda to Waycross (Georgia) | 4,108.64 mi (6,612.21 km) |
