| Merthyr Tudful to Ponteland | 238.02 mi (383.05 km) |
| Merthyr Tudful to Pontneddfechan | 9.02 mi (14.51 km) |
| Merthyr Tudful to Pontypridd | 9.86 mi (15.87 km) |
| Merthyr Tudful to Poole | 93.11 mi (149.84 km) |
| Merthyr Tudful to Port Glasgow | 294.46 mi (473.89 km) |
| Merthyr Tudful to Port Talbot | 20.87 mi (33.59 km) |
| Merthyr Tudful to Portchester | 115.72 mi (186.24 km) |
| Merthyr Tudful to Porthcawl | 22.57 mi (36.32 km) |
| Merthyr Tudful to Portishead | 31.90 mi (51.33 km) |
| Merthyr Tudful to Portlethen | 370.83 mi (596.80 km) |
| Merthyr Tudful to Portsmouth | 118.30 mi (190.39 km) |
| Merthyr Tudful to Potters Bar | 136.78 mi (220.13 km) |
| Merthyr Tudful to Poulton le Fylde | 146.25 mi (235.37 km) |
| Merthyr Tudful to Poynton | 123.03 mi (197.99 km) |
| Merthyr Tudful to Prescot | 118.91 mi (191.37 km) |
