| Swansea to Collegno | 4,723.83 mi (7,602.27 km) |
| Swansea to Cologno al Serio | 4,789.96 mi (7,708.70 km) |
| Swansea to Cologno Monzese | 4,775.27 mi (7,685.05 km) |
| Swansea to Colorno | 4,842.89 mi (7,793.87 km) |
| Swansea to Comacchio | 4,923.98 mi (7,924.38 km) |
| Swansea to Comiso | 5,351.53 mi (8,612.45 km) |
| Swansea to Como | 4,756.65 mi (7,655.09 km) |
| Swansea to Concordia Sagittaria | 4,906.61 mi (7,896.42 km) |
| Swansea to Concorezzo | 4,775.19 mi (7,684.92 km) |
| Swansea to Conegliano | 4,880.22 mi (7,853.95 km) |
| Swansea to Conselice | 4,917.53 mi (7,914.00 km) |
| Swansea to Conselve | 4,889.80 mi (7,869.37 km) |
| Swansea to Conversano | 5,279.61 mi (8,496.72 km) |
| Swansea to Copertino | 5,348.20 mi (8,607.10 km) |
| Swansea to Copparo | 4,901.97 mi (7,888.96 km) |
