| Merthyr Tudful to Pikesville (Maryland) | 3,491.53 mi (5,619.08 km) |
| Merthyr Tudful to Pine Bluff (Arkansas) | 4,354.34 mi (7,007.63 km) |
| Merthyr Tudful to Pine Castle (Florida) | 4,202.62 mi (6,763.47 km) |
| Merthyr Tudful to Pine Hill (New Jersey) | 3,403.48 mi (5,477.38 km) |
| Merthyr Tudful to Pine Hills (Florida) | 4,200.82 mi (6,760.57 km) |
| Merthyr Tudful to Pinecrest (Florida) | 4,297.81 mi (6,916.66 km) |
| Merthyr Tudful to Pinehurst (North Carolina) | 3,797.15 mi (6,110.93 km) |
| Merthyr Tudful to Pinellas Park (Florida) | 4,289.04 mi (6,902.54 km) |
| Merthyr Tudful to Pineville (Louisiana) | 4,513.96 mi (7,264.51 km) |
| Merthyr Tudful to Pineville (North Carolina) | 3,861.00 mi (6,213.69 km) |
| Merthyr Tudful to Pinewood (Florida) | 4,283.78 mi (6,894.09 km) |
| Merthyr Tudful to Piney Green (North Carolina) | 3,728.50 mi (6,000.45 km) |
| Merthyr Tudful to Pinole (California) | 5,228.32 mi (8,414.17 km) |
| Merthyr Tudful to Piqua (Ohio) | 3,761.94 mi (6,054.26 km) |
| Merthyr Tudful to Pittsburg (California) | 5,215.07 mi (8,392.85 km) |
