| Rhyl to Cloverly (Maryland) | 3,482.62 mi (5,604.74 km) |
| Rhyl to Clovis (California) | 5,137.72 mi (8,268.36 km) |
| Rhyl to Clovis (New Mexico) | 4,716.18 mi (7,589.96 km) |
| Rhyl to Clute (Texas) | 4,710.95 mi (7,581.55 km) |
| Rhyl to Coachella (California) | 5,204.31 mi (8,375.54 km) |
| Rhyl to Coalinga (California) | 5,196.90 mi (8,363.60 km) |
| Rhyl to Coamo (Puerto Rico) | 4,110.44 mi (6,615.11 km) |
| Rhyl to Coatesville (Pennsylvania) | 3,395.33 mi (5,464.26 km) |
| Rhyl to Cockeysville (Maryland) | 3,450.64 mi (5,553.27 km) |
| Rhyl to Cocoa (Florida) | 4,159.87 mi (6,694.67 km) |
| Rhyl to Cocoa Beach (Florida) | 4,156.68 mi (6,689.53 km) |
| Rhyl to Coconut Creek (Florida) | 4,244.24 mi (6,830.45 km) |
| Rhyl to Coeur d'Alene (Idaho) | 4,440.64 mi (7,146.51 km) |
| Rhyl to Cohoes (New York) | 3,187.63 mi (5,129.99 km) |
| Rhyl to Cold Springs (Nevada) | 4,982.53 mi (8,018.61 km) |
