| Pontypridd to Carson (California) | 5,344.06 mi (8,600.44 km) |
| Pontypridd to Carson City (Nevada) | 5,092.44 mi (8,195.49 km) |
| Pontypridd to Carteret (New Jersey) | 3,342.03 mi (5,378.47 km) |
| Pontypridd to Cartersville (Georgia) | 4,070.03 mi (6,550.08 km) |
| Pontypridd to Carthage (Missouri) | 4,304.61 mi (6,927.60 km) |
| Pontypridd to Cary (Illinois) | 3,829.89 mi (6,163.61 km) |
| Pontypridd to Cary (North Carolina) | 3,746.64 mi (6,029.63 km) |
| Pontypridd to Casa de Oro-Mount Helix (California) | 5,361.37 mi (8,628.28 km) |
| Pontypridd to Casa Grande (Arizona) | 5,173.07 mi (8,325.25 km) |
| Pontypridd to Casas Adobes (Arizona) | 5,177.19 mi (8,331.89 km) |
| Pontypridd to Cascades (Virginia) | 3,539.14 mi (5,695.69 km) |
| Pontypridd to Casper (Wyoming) | 4,456.02 mi (7,171.26 km) |
| Pontypridd to Casselberry (Florida) | 4,193.84 mi (6,749.33 km) |
| Pontypridd to Castaic (California) | 5,320.08 mi (8,561.85 km) |
| Pontypridd to Castle Pines (Colorado) | 4,579.49 mi (7,369.98 km) |
