| Llantrisant to Portage (Michigan) | 3,728.00 mi (5,999.64 km) |
| Llantrisant to Portage (Wisconsin) | 3,816.22 mi (6,141.62 km) |
| Llantrisant to Portales (New Mexico) | 4,799.97 mi (7,724.81 km) |
| Llantrisant to Porterville (California) | 5,245.52 mi (8,441.84 km) |
| Llantrisant to Portland (Maine) | 3,051.80 mi (4,911.40 km) |
| Llantrisant to Portland (Oregon) | 4,820.39 mi (7,757.67 km) |
| Llantrisant to Portland (Tennessee) | 4,023.99 mi (6,475.98 km) |
| Llantrisant to Portland (Texas) | 4,893.52 mi (7,875.36 km) |
| Llantrisant to Portsmouth (New Hampshire) | 3,097.42 mi (4,984.82 km) |
| Llantrisant to Portsmouth (Ohio) | 3,778.77 mi (6,081.35 km) |
| Llantrisant to Portsmouth (Virginia) | 3,594.79 mi (5,785.26 km) |
| Llantrisant to Post Falls (Idaho) | 4,536.83 mi (7,301.33 km) |
| Llantrisant to Potomac (Maryland) | 3,532.45 mi (5,684.93 km) |
| Llantrisant to Potomac Park (California) | 5,282.81 mi (8,501.87 km) |
| Llantrisant to Pottstown (Pennsylvania) | 3,414.51 mi (5,495.13 km) |
