| Portsmouth to Port Chester (New York) | 3,410.63 mi (5,488.88 km) |
| Portsmouth to Port Hueneme (California) | 5,466.62 mi (8,797.68 km) |
| Portsmouth to Port Huron (Michigan) | 3,681.34 mi (5,924.54 km) |
| Portsmouth to Port Lavaca (Texas) | 4,938.76 mi (7,948.16 km) |
| Portsmouth to Port Neches (Texas) | 4,760.82 mi (7,661.80 km) |
| Portsmouth to Port Orange (Florida) | 4,265.30 mi (6,864.34 km) |
| Portsmouth to Port Orchard (Washington) | 4,811.01 mi (7,742.58 km) |
| Portsmouth to Port Royal (South Carolina) | 4,095.18 mi (6,590.56 km) |
| Portsmouth to Port Salerno (Florida) | 4,326.49 mi (6,962.81 km) |
| Portsmouth to Port St. John (Florida) | 4,287.62 mi (6,900.26 km) |
| Portsmouth to Port St. Lucie (Florida) | 4,328.44 mi (6,965.94 km) |
| Portsmouth to Port Washington (New York) | 3,418.47 mi (5,501.50 km) |
| Portsmouth to Port Washington (Wisconsin) | 3,874.93 mi (6,236.09 km) |
| Portsmouth to Port Wentworth (Georgia) | 4,123.79 mi (6,636.60 km) |
| Portsmouth to Portage (Indiana) | 3,928.99 mi (6,323.10 km) |
