| Rhyl to Cookeville (Tennessee) | 3,960.42 mi (6,373.68 km) |
| Rhyl to Coolidge (Arizona) | 5,091.82 mi (8,194.49 km) |
| Rhyl to Coon Rapids (Minnesota) | 3,816.98 mi (6,142.84 km) |
| Rhyl to Cooper City (Florida) | 4,260.55 mi (6,856.70 km) |
| Rhyl to Coos Bay (Oregon) | 4,891.98 mi (7,872.88 km) |
| Rhyl to Copiague (New York) | 3,267.49 mi (5,258.52 km) |
| Rhyl to Coppell (Texas) | 4,564.70 mi (7,346.18 km) |
| Rhyl to Copperas Cove (Texas) | 4,696.87 mi (7,558.88 km) |
| Rhyl to Coral Gables (Florida) | 4,277.73 mi (6,884.35 km) |
| Rhyl to Coral Springs (Florida) | 4,247.84 mi (6,836.23 km) |
| Rhyl to Coral Terrace (Florida) | 4,276.89 mi (6,882.98 km) |
| Rhyl to Coralville (Iowa) | 3,921.69 mi (6,311.34 km) |
| Rhyl to Coram (New York) | 3,242.66 mi (5,218.56 km) |
| Rhyl to Corcoran (California) | 5,176.67 mi (8,331.04 km) |
| Rhyl to Cordele (Georgia) | 4,099.93 mi (6,598.20 km) |
