| Swansea to Clarksdale (Mississippi) | 302.81 mi (487.33 km) |
| Swansea to Clarkston (Georgia) | 457.93 mi (736.97 km) |
| Swansea to Clarksville (Indiana) | 228.83 mi (368.27 km) |
| Swansea to Clarksville (Tennessee) | 199.29 mi (320.72 km) |
| Swansea to Clawson (Michigan) | 452.13 mi (727.63 km) |
| Swansea to Clay (Alabama) | 384.72 mi (619.15 km) |
| Swansea to Clayton (California) | 1,725.14 mi (2,776.35 km) |
| Swansea to Clayton (Missouri) | 19.70 mi (31.70 km) |
| Swansea to Clayton (North Carolina) | 665.79 mi (1,071.49 km) |
| Swansea to Clayton (Ohio) | 316.17 mi (508.82 km) |
| Swansea to Clearfield (Utah) | 1,179.37 mi (1,898.01 km) |
| Swansea to Clearlake (California) | 1,749.79 mi (2,816.01 km) |
| Swansea to Clearwater (Florida) | 840.52 mi (1,352.69 km) |
| Swansea to Cleburne (Texas) | 597.89 mi (962.21 km) |
| Swansea to Clemmons (North Carolina) | 555.31 mi (893.69 km) |
