| Portsmouth to Savannah (Georgia) | 4,131.05 mi (6,648.28 km) |
| Portsmouth to Sayreville (New Jersey) | 3,460.58 mi (5,569.26 km) |
| Portsmouth to Sayville (New York) | 3,397.19 mi (5,467.24 km) |
| Portsmouth to Scaggsville (Maryland) | 3,623.85 mi (5,832.02 km) |
| Portsmouth to Scarsdale (New York) | 3,415.78 mi (5,497.17 km) |
| Portsmouth to Schaumburg (Illinois) | 3,943.76 mi (6,346.87 km) |
| Portsmouth to Schenectady (New York) | 3,346.93 mi (5,386.36 km) |
| Portsmouth to Schererville (Indiana) | 3,943.81 mi (6,346.95 km) |
| Portsmouth to Schertz (Texas) | 4,954.68 mi (7,973.79 km) |
| Portsmouth to Schiller Park (Illinois) | 3,938.76 mi (6,338.83 km) |
| Portsmouth to Schofield Barracks (Hawaii) | 7,248.15 mi (11,664.77 km) |
| Portsmouth to Scotchtown (New York) | 3,419.76 mi (5,503.57 km) |
| Portsmouth to Scottdale (Georgia) | 4,175.35 mi (6,719.58 km) |
| Portsmouth to Scotts Valley (California) | 5,389.60 mi (8,673.73 km) |
| Portsmouth to Scottsbluff (Nebraska) | 4,525.13 mi (7,282.49 km) |
