| Cwmbran to Portage (Michigan) | 3,738.56 mi (6,016.63 km) |
| Cwmbran to Portage (Wisconsin) | 3,825.94 mi (6,157.26 km) |
| Cwmbran to Portales (New Mexico) | 4,809.39 mi (7,739.96 km) |
| Cwmbran to Porterville (California) | 5,251.84 mi (8,452.02 km) |
| Cwmbran to Portland (Maine) | 3,064.01 mi (4,931.05 km) |
| Cwmbran to Portland (Oregon) | 4,824.43 mi (7,764.18 km) |
| Cwmbran to Portland (Tennessee) | 4,035.55 mi (6,494.59 km) |
| Cwmbran to Portland (Texas) | 4,904.93 mi (7,893.73 km) |
| Cwmbran to Portsmouth (New Hampshire) | 3,109.72 mi (5,004.61 km) |
| Cwmbran to Portsmouth (Ohio) | 3,790.42 mi (6,100.09 km) |
| Cwmbran to Portsmouth (Virginia) | 3,607.68 mi (5,806.01 km) |
| Cwmbran to Post Falls (Idaho) | 4,541.44 mi (7,308.75 km) |
| Cwmbran to Potomac (Maryland) | 3,544.81 mi (5,704.83 km) |
| Cwmbran to Potomac Park (California) | 5,289.26 mi (8,512.24 km) |
| Cwmbran to Pottstown (Pennsylvania) | 3,426.82 mi (5,514.94 km) |
