| Swansea to Carterton | 4,131.72 mi (6,649.36 km) |
| Swansea to Castle Bromwich | 4,102.46 mi (6,602.27 km) |
| Swansea to Castleford | 4,083.93 mi (6,572.45 km) |
| Swansea to Castleton | 4,056.90 mi (6,528.95 km) |
| Swansea to Caterham | 4,204.53 mi (6,766.53 km) |
| Swansea to Catford | 4,201.81 mi (6,762.16 km) |
| Swansea to Caversham | 4,164.33 mi (6,701.84 km) |
| Swansea to Chaddesden | 4,103.38 mi (6,603.75 km) |
| Swansea to Chalfont Saint Peter | 4,176.23 mi (6,720.99 km) |
| Swansea to Chandlers Ford | 4,163.01 mi (6,699.72 km) |
| Swansea to Chapel en le Frith | 4,074.11 mi (6,556.64 km) |
| Swansea to Chapeltown | 4,087.06 mi (6,577.49 km) |
| Swansea to Chard | 4,104.12 mi (6,604.94 km) |
| Swansea to Charlton Kings | 4,110.52 mi (6,615.25 km) |
| Swansea to Chatham | 4,224.98 mi (6,799.45 km) |
