| Swansea to Cehegin | 4,572.22 mi (7,358.28 km) |
| Swansea to Cervello | 4,622.95 mi (7,439.93 km) |
| Swansea to Cervera | 4,582.89 mi (7,375.45 km) |
| Swansea to Ceuti | 4,597.16 mi (7,398.41 km) |
| Swansea to Cheste | 4,573.75 mi (7,360.74 km) |
| Swansea to Chiclana de la Frontera | 4,425.60 mi (7,122.32 km) |
| Swansea to Chipiona | 4,401.05 mi (7,082.80 km) |
| Swansea to Chiva | 4,572.44 mi (7,358.63 km) |
| Swansea to Churriana de la Vega | 4,519.08 mi (7,272.76 km) |
| Swansea to Ciempozuelos | 4,415.75 mi (7,106.47 km) |
| Swansea to Cieza | 4,584.58 mi (7,378.17 km) |
| Swansea to Cisterniga | 4,318.19 mi (6,949.45 km) |
| Swansea to Ciudad de Melilla | 4,619.68 mi (7,434.66 km) |
| Swansea to Ciudad Real | 4,442.39 mi (7,149.33 km) |
| Swansea to Ciudad-Rodrigo | 4,266.54 mi (6,866.33 km) |
