| Portsmouth to Penne | 913.61 mi (1,470.31 km) |
| Portsmouth to Pergine Valsugana | 651.63 mi (1,048.70 km) |
| Portsmouth to Perugia | 826.28 mi (1,329.77 km) |
| Portsmouth to Pesaro | 807.22 mi (1,299.10 km) |
| Portsmouth to Pescantina | 661.30 mi (1,064.25 km) |
| Portsmouth to Pescara | 923.81 mi (1,486.73 km) |
| Portsmouth to Peschiera del Garda | 656.44 mi (1,056.44 km) |
| Portsmouth to Pescia | 727.46 mi (1,170.74 km) |
| Portsmouth to Petilia Policastro | 1,184.02 mi (1,905.50 km) |
| Portsmouth to Piacenza | 637.32 mi (1,025.67 km) |
| Portsmouth to Pianella | 920.89 mi (1,482.02 km) |
| Portsmouth to Pianezza | 560.18 mi (901.53 km) |
| Portsmouth to Pianiga | 706.43 mi (1,136.88 km) |
| Portsmouth to Piano di Sorrento | 1,022.29 mi (1,645.22 km) |
| Portsmouth to Pianoro | 727.68 mi (1,171.08 km) |
