| Portsmouth to Red Bank (New Jersey) | 3,454.93 mi (5,560.17 km) |
| Portsmouth to Red Bank (Tennessee) | 4,155.08 mi (6,686.96 km) |
| Portsmouth to Red Bluff (California) | 5,217.47 mi (8,396.71 km) |
| Portsmouth to Red Hill (South Carolina) | 3,956.52 mi (6,367.41 km) |
| Portsmouth to Red Oak (Texas) | 4,744.65 mi (7,635.78 km) |
| Portsmouth to Red Wing (Minnesota) | 3,997.28 mi (6,433.01 km) |
| Portsmouth to Redan (Georgia) | 4,173.91 mi (6,717.26 km) |
| Portsmouth to Redding (California) | 5,198.40 mi (8,366.02 km) |
| Portsmouth to Redland (Maryland) | 3,635.03 mi (5,850.02 km) |
| Portsmouth to Redlands (California) | 5,406.18 mi (8,700.40 km) |
| Portsmouth to Redmond (Oregon) | 4,954.08 mi (7,972.83 km) |
| Portsmouth to Redmond (Washington) | 4,787.36 mi (7,704.52 km) |
| Portsmouth to Redondo Beach (California) | 5,456.89 mi (8,782.02 km) |
| Portsmouth to Redwood City (California) | 5,370.39 mi (8,642.81 km) |
| Portsmouth to Reedley (California) | 5,335.94 mi (8,587.37 km) |
