| Pontypridd to Centralia (Illinois) | 4,035.62 mi (6,494.71 km) |
| Pontypridd to Centralia (Washington) | 4,760.19 mi (7,660.78 km) |
| Pontypridd to Centreville (Virginia) | 3,550.48 mi (5,713.94 km) |
| Pontypridd to Ceres (California) | 5,218.22 mi (8,397.92 km) |
| Pontypridd to Cerritos (California) | 5,336.14 mi (8,587.68 km) |
| Pontypridd to Chalco (Nebraska) | 4,176.36 mi (6,721.20 km) |
| Pontypridd to Chalmette (Louisiana) | 4,489.90 mi (7,225.79 km) |
| Pontypridd to Chambersburg (Pennsylvania) | 3,511.02 mi (5,650.44 km) |
| Pontypridd to Chamblee (Georgia) | 4,062.98 mi (6,538.73 km) |
| Pontypridd to Champaign (Illinois) | 3,927.53 mi (6,320.75 km) |
| Pontypridd to Champlin (Minnesota) | 3,887.10 mi (6,255.67 km) |
| Pontypridd to Chandler (Arizona) | 5,155.66 mi (8,297.24 km) |
| Pontypridd to Chanhassen (Minnesota) | 3,907.88 mi (6,289.13 km) |
| Pontypridd to Channahon (Illinois) | 3,866.55 mi (6,222.60 km) |
| Pontypridd to Channelview (Texas) | 4,706.43 mi (7,574.27 km) |
