| Rhyl to Southern Pines (North Carolina) | 3,764.46 mi (6,058.31 km) |
| Rhyl to Southfield (Michigan) | 3,572.31 mi (5,749.08 km) |
| Rhyl to Southgate (Michigan) | 3,582.68 mi (5,765.76 km) |
| Rhyl to Southlake (Texas) | 4,571.24 mi (7,356.70 km) |
| Rhyl to Spanaway (Washington) | 4,629.43 mi (7,450.36 km) |
| Rhyl to Spanish Fork (Utah) | 4,699.64 mi (7,563.34 km) |
| Rhyl to Spanish Lake (Missouri) | 4,011.78 mi (6,456.33 km) |
| Rhyl to Spanish Springs (Nevada) | 4,975.36 mi (8,007.07 km) |
| Rhyl to Sparks (Nevada) | 4,981.51 mi (8,016.97 km) |
| Rhyl to Spartanburg (South Carolina) | 3,877.57 mi (6,240.35 km) |
| Rhyl to Spearfish (South Dakota) | 4,211.18 mi (6,777.24 km) |
| Rhyl to Speedway (Indiana) | 3,812.21 mi (6,135.17 km) |
| Rhyl to Spencer (Iowa) | 3,980.21 mi (6,405.53 km) |
| Rhyl to Spokane (Washington) | 4,460.71 mi (7,178.81 km) |
| Rhyl to Spokane Valley (Washington) | 4,455.37 mi (7,170.22 km) |
