| Rhondda to Portage (Michigan) | 3,724.21 mi (5,993.53 km) |
| Rhondda to Portage (Wisconsin) | 3,812.20 mi (6,135.14 km) |
| Rhondda to Portales (New Mexico) | 4,795.87 mi (7,718.21 km) |
| Rhondda to Porterville (California) | 5,240.78 mi (8,434.21 km) |
| Rhondda to Portland (Maine) | 3,048.54 mi (4,906.15 km) |
| Rhondda to Portland (Oregon) | 4,815.33 mi (7,749.52 km) |
| Rhondda to Portland (Tennessee) | 4,020.50 mi (6,470.38 km) |
| Rhondda to Portland (Texas) | 4,889.99 mi (7,869.68 km) |
| Rhondda to Portsmouth (New Hampshire) | 3,094.20 mi (4,979.63 km) |
| Rhondda to Portsmouth (Ohio) | 3,775.32 mi (6,075.79 km) |
| Rhondda to Portsmouth (Virginia) | 3,591.80 mi (5,780.44 km) |
| Rhondda to Post Falls (Idaho) | 4,531.84 mi (7,293.29 km) |
| Rhondda to Potomac (Maryland) | 3,529.25 mi (5,679.78 km) |
| Rhondda to Potomac Park (California) | 5,278.09 mi (8,494.27 km) |
| Rhondda to Pottstown (Pennsylvania) | 3,411.29 mi (5,489.94 km) |
