| Rhondda to Grand Prairie (Texas) | 4,630.32 mi (7,451.78 km) |
| Rhondda to Grand Rapids (Michigan) | 3,692.77 mi (5,942.93 km) |
| Rhondda to Grand Rapids (Minnesota) | 3,794.94 mi (6,107.36 km) |
| Rhondda to Grand Terrace (California) | 5,298.68 mi (8,527.40 km) |
| Rhondda to Grandview (Missouri) | 4,224.21 mi (6,798.21 km) |
| Rhondda to Grandview (Washington) | 4,698.25 mi (7,561.10 km) |
| Rhondda to Grandville (Michigan) | 3,699.38 mi (5,953.58 km) |
| Rhondda to Granger (Indiana) | 3,766.24 mi (6,061.17 km) |
| Rhondda to Granite Bay (California) | 5,155.52 mi (8,297.00 km) |
| Rhondda to Granite City (Illinois) | 4,061.76 mi (6,536.77 km) |
| Rhondda to Grants Pass (Oregon) | 5,010.74 mi (8,064.00 km) |
| Rhondda to Grantsville (Utah) | 4,776.00 mi (7,686.22 km) |
| Rhondda to Grapevine (Texas) | 4,619.78 mi (7,434.82 km) |
| Rhondda to Grass Valley (California) | 5,125.56 mi (8,248.78 km) |
| Rhondda to Grayslake (Illinois) | 3,812.46 mi (6,135.56 km) |
