| Portsmouth to St. George (Utah) | 5,118.08 mi (8,236.75 km) |
| Portsmouth to St. Helens (Oregon) | 4,909.31 mi (7,900.76 km) |
| Portsmouth to St. James (New York) | 3,394.63 mi (5,463.14 km) |
| Portsmouth to St. John (Indiana) | 3,946.77 mi (6,351.71 km) |
| Portsmouth to St. Joseph (Missouri) | 4,308.11 mi (6,933.24 km) |
| Portsmouth to St. Louis (Missouri) | 4,185.95 mi (6,736.64 km) |
| Portsmouth to St. Louis Park (Minnesota) | 4,008.21 mi (6,450.59 km) |
| Portsmouth to St. Marys (Georgia) | 4,208.82 mi (6,773.44 km) |
| Portsmouth to St. Marys (Pennsylvania) | 3,590.94 mi (5,779.07 km) |
| Portsmouth to St. Matthews (Kentucky) | 4,021.37 mi (6,471.77 km) |
| Portsmouth to St. Michael (Minnesota) | 4,008.43 mi (6,450.95 km) |
| Portsmouth to St. Paul (Minnesota) | 3,998.74 mi (6,435.36 km) |
| Portsmouth to St. Peter (Minnesota) | 4,058.82 mi (6,532.05 km) |
| Portsmouth to St. Peters (Missouri) | 4,193.09 mi (6,748.12 km) |
| Portsmouth to St. Petersburg (Florida) | 4,400.45 mi (7,081.84 km) |
