| Cwmbran to Cloverly (Maryland) | 3,532.71 mi (5,685.35 km) |
| Cwmbran to Clovis (California) | 5,229.31 mi (8,415.76 km) |
| Cwmbran to Clovis (New Mexico) | 4,789.54 mi (7,708.02 km) |
| Cwmbran to Clute (Texas) | 4,768.86 mi (7,674.74 km) |
| Cwmbran to Coachella (California) | 5,290.20 mi (8,513.76 km) |
| Cwmbran to Coalinga (California) | 5,288.54 mi (8,511.09 km) |
| Cwmbran to Coamo (Puerto Rico) | 4,109.10 mi (6,612.96 km) |
| Cwmbran to Coatesville (Pennsylvania) | 3,445.60 mi (5,545.16 km) |
| Cwmbran to Cockeysville (Maryland) | 3,500.96 mi (5,634.25 km) |
| Cwmbran to Cocoa (Florida) | 4,197.29 mi (6,754.89 km) |
| Cwmbran to Cocoa Beach (Florida) | 4,193.82 mi (6,749.31 km) |
| Cwmbran to Coconut Creek (Florida) | 4,277.65 mi (6,884.21 km) |
| Cwmbran to Coeur d'Alene (Idaho) | 4,538.19 mi (7,303.51 km) |
| Cwmbran to Cohoes (New York) | 3,240.78 mi (5,215.54 km) |
| Cwmbran to Cold Springs (Nevada) | 5,076.46 mi (8,169.78 km) |
