| Merthyr Tudful to Piazza Armerina | 1,314.82 mi (2,115.99 km) |
| Merthyr Tudful to Piazzola sul Brenta | 811.40 mi (1,305.82 km) |
| Merthyr Tudful to Pietrasanta | 826.99 mi (1,330.91 km) |
| Merthyr Tudful to Pieve di Soligo | 812.57 mi (1,307.70 km) |
| Merthyr Tudful to Pinerolo | 681.74 mi (1,097.16 km) |
| Merthyr Tudful to Pioltello | 721.60 mi (1,161.31 km) |
| Merthyr Tudful to Piombino | 888.28 mi (1,429.55 km) |
| Merthyr Tudful to Piombino Dese | 817.26 mi (1,315.26 km) |
| Merthyr Tudful to Piossasco | 680.84 mi (1,095.71 km) |
| Merthyr Tudful to Piove di Sacco | 831.71 mi (1,338.51 km) |
| Merthyr Tudful to Pisa | 844.61 mi (1,359.26 km) |
| Merthyr Tudful to Pisticci | 1,229.36 mi (1,978.46 km) |
| Merthyr Tudful to Pistoia | 852.20 mi (1,371.48 km) |
| Merthyr Tudful to Pizzo | 1,300.77 mi (2,093.39 km) |
| Merthyr Tudful to Podenzano | 759.70 mi (1,222.62 km) |
