| Rhondda to Campo de Criptana | 844.16 mi (1,358.55 km) |
| Rhondda to Campos del Puerto | 896.86 mi (1,443.36 km) |
| Rhondda to Canals | 884.96 mi (1,424.20 km) |
| Rhondda to Candelaria | 1,741.32 mi (2,802.39 km) |
| Rhondda to Canet de Mar | 748.30 mi (1,204.27 km) |
| Rhondda to Cangas | 693.46 mi (1,116.01 km) |
| Rhondda to Cangas de Narcea | 601.30 mi (967.70 km) |
| Rhondda to Canovellas | 741.30 mi (1,193.01 km) |
| Rhondda to Canteras | 974.44 mi (1,568.21 km) |
| Rhondda to Cantillana | 975.43 mi (1,569.80 km) |
| Rhondda to Capdepera | 886.33 mi (1,426.42 km) |
| Rhondda to Carballo | 629.98 mi (1,013.85 km) |
| Rhondda to Carcagente | 874.98 mi (1,408.15 km) |
| Rhondda to Cardedeu | 741.15 mi (1,192.77 km) |
| Rhondda to Carlet | 867.30 mi (1,395.78 km) |
