| Rhyl to St. George (Utah) | 4,929.93 mi (7,933.95 km) |
| Rhyl to St. Helens (Oregon) | 4,710.76 mi (7,581.23 km) |
| Rhyl to St. James (New York) | 3,248.74 mi (5,228.34 km) |
| Rhyl to St. John (Indiana) | 3,780.15 mi (6,083.57 km) |
| Rhyl to St. Joseph (Missouri) | 4,135.60 mi (6,655.60 km) |
| Rhyl to St. Louis (Missouri) | 4,020.70 mi (6,470.69 km) |
| Rhyl to St. Louis Park (Minnesota) | 3,829.72 mi (6,163.34 km) |
| Rhyl to St. Marys (Georgia) | 4,071.83 mi (6,552.97 km) |
| Rhyl to St. Marys (Pennsylvania) | 3,435.82 mi (5,529.42 km) |
| Rhyl to St. Matthews (Kentucky) | 3,862.94 mi (6,216.81 km) |
| Rhyl to St. Michael (Minnesota) | 3,829.29 mi (6,162.64 km) |
| Rhyl to St. Paul (Minnesota) | 3,820.50 mi (6,148.50 km) |
| Rhyl to St. Peter (Minnesota) | 3,880.65 mi (6,245.30 km) |
| Rhyl to St. Peters (Missouri) | 4,027.13 mi (6,481.04 km) |
| Rhyl to St. Petersburg (Florida) | 4,267.48 mi (6,867.84 km) |
