| Rhondda to Waimea (Hawaii) | 7,210.27 mi (11,603.81 km) |
| Rhondda to Waipahu (Hawaii) | 7,163.27 mi (11,528.17 km) |
| Rhondda to Waipio (Hawaii) | 7,161.15 mi (11,524.75 km) |
| Rhondda to Wake Forest (North Carolina) | 3,722.17 mi (5,990.25 km) |
| Rhondda to Wakefield (Virginia) | 3,539.65 mi (5,696.52 km) |
| Rhondda to Waldorf (Maryland) | 3,535.97 mi (5,690.59 km) |
| Rhondda to Walker (Michigan) | 3,695.15 mi (5,946.77 km) |
| Rhondda to Walker Mill (Maryland) | 3,522.67 mi (5,669.19 km) |
| Rhondda to Walla Walla (Washington) | 4,662.51 mi (7,503.58 km) |
| Rhondda to Wallingford Center (Connecticut) | 3,243.96 mi (5,220.65 km) |
| Rhondda to Wallington (New Jersey) | 3,322.17 mi (5,346.52 km) |
| Rhondda to Walnut (California) | 5,316.75 mi (8,556.48 km) |
| Rhondda to Walnut Creek (California) | 5,231.01 mi (8,418.50 km) |
| Rhondda to Walnut Park (California) | 5,332.45 mi (8,581.75 km) |
| Rhondda to Waltham (Massachusetts) | 3,140.20 mi (5,053.66 km) |
