| Rhyl to Superior (Colorado) | 4,493.38 mi (7,231.39 km) |
| Rhyl to Superior (Wisconsin) | 3,702.48 mi (5,958.56 km) |
| Rhyl to Surprise (Arizona) | 5,081.83 mi (8,178.42 km) |
| Rhyl to Susanville (California) | 4,959.74 mi (7,981.92 km) |
| Rhyl to Sussex (Wisconsin) | 3,728.63 mi (6,000.65 km) |
| Rhyl to Suwanee (Georgia) | 4,007.09 mi (6,448.79 km) |
| Rhyl to Swansea (Illinois) | 4,015.06 mi (6,461.61 km) |
| Rhyl to Sweetwater (Florida) | 4,278.14 mi (6,884.99 km) |
| Rhyl to Sweetwater (Texas) | 4,719.06 mi (7,594.60 km) |
| Rhyl to Sycamore (Illinois) | 3,799.41 mi (6,114.56 km) |
| Rhyl to Sylacauga (Alabama) | 4,137.76 mi (6,659.08 km) |
| Rhyl to Sylvania (Ohio) | 3,624.75 mi (5,833.47 km) |
| Rhyl to Syosset (New York) | 3,265.42 mi (5,255.18 km) |
| Rhyl to Syracuse (New York) | 3,271.85 mi (5,265.54 km) |
| Rhyl to Syracuse (Utah) | 4,660.15 mi (7,499.78 km) |
