| Portsmouth to Princeton (Florida) | 4,415.22 mi (7,105.61 km) |
| Portsmouth to Princeton (New Jersey) | 3,479.56 mi (5,599.81 km) |
| Portsmouth to Princeton (Texas) | 4,700.16 mi (7,564.18 km) |
| Portsmouth to Princeton Meadows (New Jersey) | 3,476.15 mi (5,594.33 km) |
| Portsmouth to Prineville (Oregon) | 4,942.84 mi (7,954.72 km) |
| Portsmouth to Prior Lake (Minnesota) | 4,021.37 mi (6,471.77 km) |
| Portsmouth to Progress (Pennsylvania) | 3,572.00 mi (5,748.58 km) |
| Portsmouth to Prospect Heights (Illinois) | 3,934.37 mi (6,331.76 km) |
| Portsmouth to Prosper (Texas) | 4,708.96 mi (7,578.34 km) |
| Portsmouth to Providence (Rhode Island) | 3,283.46 mi (5,284.21 km) |
| Portsmouth to Provo (Utah) | 4,881.51 mi (7,856.03 km) |
| Portsmouth to Prunedale (California) | 5,392.99 mi (8,679.18 km) |
| Portsmouth to Pueblo (Colorado) | 4,743.57 mi (7,634.04 km) |
| Portsmouth to Pueblo West (Colorado) | 4,743.65 mi (7,634.17 km) |
| Portsmouth to Pullman (Washington) | 4,701.28 mi (7,565.98 km) |
