| Rhyl to Ukiah (California) | 5,109.08 mi (8,222.27 km) |
| Rhyl to Union (Missouri) | 4,058.65 mi (6,531.76 km) |
| Rhyl to Union City (California) | 5,163.70 mi (8,310.16 km) |
| Rhyl to Union City (Georgia) | 4,049.49 mi (6,517.03 km) |
| Rhyl to Union City (New Jersey) | 3,288.75 mi (5,292.73 km) |
| Rhyl to Union City (Tennessee) | 4,084.23 mi (6,572.93 km) |
| Rhyl to Union Hill-Novelty Hill (Washington) | 4,585.93 mi (7,380.34 km) |
| Rhyl to Union Park (Florida) | 4,169.56 mi (6,710.25 km) |
| Rhyl to Uniondale (New York) | 3,273.50 mi (5,268.18 km) |
| Rhyl to Universal City (Texas) | 4,795.14 mi (7,717.03 km) |
| Rhyl to University (Florida) | 4,243.42 mi (6,829.13 km) |
| Rhyl to University City (Missouri) | 4,022.50 mi (6,473.59 km) |
| Rhyl to University Heights (Ohio) | 3,550.96 mi (5,714.72 km) |
| Rhyl to University of California-Santa Barbara (California) | 5,281.96 mi (8,500.50 km) |
| Rhyl to University Park (Texas) | 4,563.19 mi (7,343.75 km) |
