| Rhyl to Joliet (Illinois) | 3,802.14 mi (6,118.95 km) |
| Rhyl to Jonesboro (Arkansas) | 4,177.33 mi (6,722.77 km) |
| Rhyl to Joplin (Missouri) | 4,258.96 mi (6,854.13 km) |
| Rhyl to Joppatowne (Maryland) | 3,442.43 mi (5,540.06 km) |
| Rhyl to Juana Díaz (Puerto Rico) | 4,117.41 mi (6,626.32 km) |
| Rhyl to Junction City (Kansas) | 4,246.67 mi (6,834.35 km) |
| Rhyl to Juneau (Alaska) | 4,237.69 mi (6,819.91 km) |
| Rhyl to Jupiter (Florida) | 4,208.25 mi (6,772.52 km) |
| Rhyl to Jupiter Farms (Florida) | 4,212.48 mi (6,779.33 km) |
| Rhyl to Jurupa Valley (California) | 5,229.80 mi (8,416.54 km) |
| Rhyl to Justice (Illinois) | 3,779.35 mi (6,082.28 km) |
| Rhyl to Kahului (Hawaii) | 7,061.99 mi (11,365.17 km) |
| Rhyl to Kailua (Hawaii) | 7,049.76 mi (11,345.49 km) |
| Rhyl to Kalamazoo (Michigan) | 3,670.05 mi (5,906.38 km) |
| Rhyl to Kalispell (Montana) | 4,342.33 mi (6,988.31 km) |
