| Cwmbran to Corinth (Mississippi) | 4,194.76 mi (6,750.81 km) |
| Cwmbran to Corinth (Texas) | 4,623.26 mi (7,440.42 km) |
| Cwmbran to Cornelius (North Carolina) | 3,858.80 mi (6,210.13 km) |
| Cwmbran to Cornelius (Oregon) | 4,836.59 mi (7,783.75 km) |
| Cwmbran to Corning (New York) | 3,402.67 mi (5,476.07 km) |
| Cwmbran to Corona (California) | 5,328.19 mi (8,574.89 km) |
| Cwmbran to Coronado (California) | 5,382.08 mi (8,661.61 km) |
| Cwmbran to Corpus Christi (Texas) | 4,915.71 mi (7,911.07 km) |
| Cwmbran to Corsicana (Texas) | 4,654.03 mi (7,489.94 km) |
| Cwmbran to Cortland (New York) | 3,348.07 mi (5,388.20 km) |
| Cwmbran to Corvallis (Oregon) | 4,896.80 mi (7,880.64 km) |
| Cwmbran to Coshocton (Ohio) | 3,677.87 mi (5,918.96 km) |
| Cwmbran to Costa Mesa (California) | 5,350.75 mi (8,611.20 km) |
| Cwmbran to Coto de Caza (California) | 5,343.86 mi (8,600.12 km) |
| Cwmbran to Cottage Grove (Minnesota) | 3,896.36 mi (6,270.59 km) |
