| Portsmouth to Roy (Utah) | 4,844.94 mi (7,797.17 km) |
| Portsmouth to Royal Kunia (Hawaii) | 7,253.56 mi (11,673.47 km) |
| Portsmouth to Royal Oak (Michigan) | 3,730.13 mi (6,003.07 km) |
| Portsmouth to Royal Palm Beach (Florida) | 4,349.87 mi (7,000.43 km) |
| Portsmouth to Royse City (Texas) | 4,703.06 mi (7,568.84 km) |
| Portsmouth to Ruskin (Florida) | 4,394.32 mi (7,071.98 km) |
| Portsmouth to Russellville (Alabama) | 4,283.46 mi (6,893.57 km) |
| Portsmouth to Russellville (Arkansas) | 4,462.63 mi (7,181.91 km) |
| Portsmouth to Ruston (Louisiana) | 4,579.01 mi (7,369.20 km) |
| Portsmouth to Rutherford (New Jersey) | 3,436.53 mi (5,530.56 km) |
| Portsmouth to Rutland (Vermont) | 3,275.56 mi (5,271.51 km) |
| Portsmouth to Sabana Grande (Puerto Rico) | 4,208.95 mi (6,773.65 km) |
| Portsmouth to Sachse (Texas) | 4,713.53 mi (7,585.69 km) |
| Portsmouth to Saco (Maine) | 3,175.15 mi (5,109.91 km) |
| Portsmouth to Sacramento (California) | 5,286.33 mi (8,507.52 km) |
