| Llantrisant to Ponteland | 251.38 mi (404.56 km) |
| Llantrisant to Pontneddfechan | 17.34 mi (27.90 km) |
| Llantrisant to Pontypridd | 4.38 mi (7.05 km) |
| Llantrisant to Poole | 83.02 mi (133.61 km) |
| Llantrisant to Port Glasgow | 308.17 mi (495.95 km) |
| Llantrisant to Port Talbot | 18.50 mi (29.77 km) |
| Llantrisant to Portchester | 108.96 mi (175.35 km) |
| Llantrisant to Porthcawl | 14.21 mi (22.86 km) |
| Llantrisant to Portishead | 26.64 mi (42.87 km) |
| Llantrisant to Portlethen | 384.60 mi (618.95 km) |
| Llantrisant to Portsmouth | 111.39 mi (179.26 km) |
| Llantrisant to Potters Bar | 137.34 mi (221.03 km) |
| Llantrisant to Poulton le Fylde | 160.05 mi (257.58 km) |
| Llantrisant to Poynton | 135.69 mi (218.37 km) |
| Llantrisant to Prescot | 132.53 mi (213.28 km) |
