| Pontypridd to Caguas (Puerto Rico) | 4,072.98 mi (6,554.83 km) |
| Pontypridd to Cahokia (Illinois) | 4,075.00 mi (6,558.08 km) |
| Pontypridd to Calabasas (California) | 5,340.76 mi (8,595.12 km) |
| Pontypridd to Caldwell (Idaho) | 4,747.75 mi (7,640.76 km) |
| Pontypridd to Caledonia (Wisconsin) | 3,788.96 mi (6,097.75 km) |
| Pontypridd to Calera (Alabama) | 4,200.05 mi (6,759.33 km) |
| Pontypridd to Calexico (California) | 5,315.52 mi (8,554.50 km) |
| Pontypridd to Calhoun (Georgia) | 4,059.96 mi (6,533.88 km) |
| Pontypridd to California (Maryland) | 3,535.70 mi (5,690.17 km) |
| Pontypridd to California City (California) | 5,257.06 mi (8,460.42 km) |
| Pontypridd to Callaway (Florida) | 4,298.35 mi (6,917.53 km) |
| Pontypridd to Calumet City (Illinois) | 3,830.26 mi (6,164.21 km) |
| Pontypridd to Calverton (Maryland) | 3,520.59 mi (5,665.84 km) |
| Pontypridd to Camano (Washington) | 4,664.41 mi (7,506.64 km) |
| Pontypridd to Camarillo (California) | 5,347.85 mi (8,606.53 km) |
