| Swansea to Carrollwood (Florida) | 842.89 mi (1,356.50 km) |
| Swansea to Carson (California) | 1,602.94 mi (2,579.68 km) |
| Swansea to Carson City (Nevada) | 1,594.76 mi (2,566.53 km) |
| Swansea to Carteret (New Jersey) | 849.76 mi (1,367.56 km) |
| Swansea to Cartersville (Georgia) | 418.28 mi (673.15 km) |
| Swansea to Carthage (Missouri) | 255.58 mi (411.32 km) |
| Swansea to Cary (Illinois) | 269.01 mi (432.94 km) |
| Swansea to Cary (North Carolina) | 643.39 mi (1,035.44 km) |
| Swansea to Casa de Oro-Mount Helix (California) | 1,560.43 mi (2,511.28 km) |
| Swansea to Casa Grande (Arizona) | 1,278.55 mi (2,057.64 km) |
| Swansea to Casas Adobes (Arizona) | 1,255.32 mi (2,020.24 km) |
| Swansea to Cascades (Virginia) | 678.72 mi (1,092.30 km) |
| Swansea to Casper (Wyoming) | 903.84 mi (1,454.59 km) |
| Swansea to Casselberry (Florida) | 844.85 mi (1,359.66 km) |
| Swansea to Castaic (California) | 1,608.60 mi (2,588.79 km) |
