| Portsmouth to Potenza Picena | 859.24 mi (1,382.81 km) |
| Portsmouth to Pozzallo | 1,250.58 mi (2,012.61 km) |
| Portsmouth to Pozzuoli | 1,002.45 mi (1,613.29 km) |
| Portsmouth to Prato | 742.87 mi (1,195.53 km) |
| Portsmouth to Preganziol | 709.56 mi (1,141.93 km) |
| Portsmouth to Priolo Gargallo | 1,236.29 mi (1,989.62 km) |
| Portsmouth to Priverno | 936.77 mi (1,507.59 km) |
| Portsmouth to Pulsano | 1,140.43 mi (1,835.34 km) |
| Portsmouth to Putignano | 1,109.01 mi (1,784.77 km) |
| Portsmouth to Qualiano | 998.58 mi (1,607.05 km) |
| Portsmouth to Quarrata | 740.46 mi (1,191.65 km) |
| Portsmouth to Quartu Sant'Elena | 941.43 mi (1,515.08 km) |
| Portsmouth to Quartucciu | 940.53 mi (1,513.63 km) |
| Portsmouth to Quattro Castella | 684.47 mi (1,101.54 km) |
| Portsmouth to Quinto di Treviso | 704.94 mi (1,134.49 km) |
