| Portsmouth to Piazza Armerina | 1,198.38 mi (1,928.61 km) |
| Portsmouth to Piazzola sul Brenta | 693.94 mi (1,116.79 km) |
| Portsmouth to Pietrasanta | 708.87 mi (1,140.82 km) |
| Portsmouth to Pieve di Soligo | 695.79 mi (1,119.77 km) |
| Portsmouth to Pinerolo | 564.66 mi (908.74 km) |
| Portsmouth to Pioltello | 603.31 mi (970.93 km) |
| Portsmouth to Piombino | 770.60 mi (1,240.17 km) |
| Portsmouth to Piombino Dese | 700.02 mi (1,126.57 km) |
| Portsmouth to Piossasco | 563.51 mi (906.89 km) |
| Portsmouth to Piove di Sacco | 714.16 mi (1,149.33 km) |
| Portsmouth to Pisa | 726.53 mi (1,169.24 km) |
| Portsmouth to Pisticci | 1,111.06 mi (1,788.08 km) |
| Portsmouth to Pistoia | 733.93 mi (1,181.15 km) |
| Portsmouth to Pizzo | 1,182.74 mi (1,903.44 km) |
| Portsmouth to Podenzano | 641.41 mi (1,032.25 km) |
