| Rhondda to West St. Paul (Minnesota) | 3,885.06 mi (6,252.40 km) |
| Rhondda to West University Place (Texas) | 4,719.69 mi (7,595.61 km) |
| Rhondda to West Valley City (Utah) | 4,756.68 mi (7,655.13 km) |
| Rhondda to West Whittier-Los Nietos (California) | 5,326.94 mi (8,572.89 km) |
| Rhondda to Westbrook (Maine) | 3,051.20 mi (4,910.44 km) |
| Rhondda to Westbury (New York) | 3,304.83 mi (5,318.61 km) |
| Rhondda to Westchase (Florida) | 4,274.87 mi (6,879.73 km) |
| Rhondda to Westchester (Florida) | 4,295.11 mi (6,912.32 km) |
| Rhondda to Westchester (Illinois) | 3,829.32 mi (6,162.69 km) |
| Rhondda to Western Springs (Illinois) | 3,831.85 mi (6,166.76 km) |
| Rhondda to Westerville (Ohio) | 3,712.07 mi (5,974.00 km) |
| Rhondda to Westfield (Indiana) | 3,844.62 mi (6,187.32 km) |
| Rhondda to Westfield (Massachusetts) | 3,212.73 mi (5,170.38 km) |
| Rhondda to Westfield (New Jersey) | 3,340.52 mi (5,376.05 km) |
| Rhondda to Westlake (Ohio) | 3,613.18 mi (5,814.85 km) |
