| Merthyr Tudful to Penne | 1,031.90 mi (1,660.69 km) |
| Merthyr Tudful to Pergine Valsugana | 768.78 mi (1,237.23 km) |
| Merthyr Tudful to Perugia | 944.58 mi (1,520.15 km) |
| Merthyr Tudful to Pesaro | 925.35 mi (1,489.20 km) |
| Merthyr Tudful to Pescantina | 779.23 mi (1,254.05 km) |
| Merthyr Tudful to Pescara | 1,042.08 mi (1,677.07 km) |
| Merthyr Tudful to Peschiera del Garda | 774.47 mi (1,246.39 km) |
| Merthyr Tudful to Pescia | 845.68 mi (1,360.99 km) |
| Merthyr Tudful to Petilia Policastro | 1,302.26 mi (2,095.78 km) |
| Merthyr Tudful to Piacenza | 755.63 mi (1,216.06 km) |
| Merthyr Tudful to Pianella | 1,039.18 mi (1,672.40 km) |
| Merthyr Tudful to Pianezza | 677.70 mi (1,090.66 km) |
| Merthyr Tudful to Pianiga | 823.83 mi (1,325.83 km) |
| Merthyr Tudful to Piano di Sorrento | 1,140.41 mi (1,835.32 km) |
| Merthyr Tudful to Pianoro | 845.95 mi (1,361.43 km) |
