| Rhondda to Cadiz | 1,051.53 mi (1,692.28 km) |
| Rhondda to Calafell | 757.39 mi (1,218.90 km) |
| Rhondda to Calahorra | 647.26 mi (1,041.66 km) |
| Rhondda to Calasparra | 928.57 mi (1,494.40 km) |
| Rhondda to Calatayud | 714.31 mi (1,149.57 km) |
| Rhondda to Caldas de Montbuy | 738.38 mi (1,188.31 km) |
| Rhondda to Caldas de Reyes | 668.96 mi (1,076.58 km) |
| Rhondda to Calella | 748.09 mi (1,203.93 km) |
| Rhondda to Callosa de Segura | 940.40 mi (1,513.42 km) |
| Rhondda to Calpe | 911.68 mi (1,467.20 km) |
| Rhondda to Calvia | 879.74 mi (1,415.80 km) |
| Rhondda to Camas | 990.34 mi (1,593.79 km) |
| Rhondda to Cambados | 678.43 mi (1,091.83 km) |
| Rhondda to Cambre | 619.51 mi (997.00 km) |
| Rhondda to Cambrils | 759.08 mi (1,221.63 km) |
