| Rhondda to Chickasha (Oklahoma) | 4,546.38 mi (7,316.69 km) |
| Rhondda to Chico (California) | 5,118.45 mi (8,237.35 km) |
| Rhondda to Chicopee (Massachusetts) | 3,203.59 mi (5,155.68 km) |
| Rhondda to Chillicothe (Ohio) | 3,750.57 mi (6,035.96 km) |
| Rhondda to Chillum (Maryland) | 3,522.50 mi (5,668.92 km) |
| Rhondda to Chino (California) | 5,313.10 mi (8,550.60 km) |
| Rhondda to Chino Hills (California) | 5,316.94 mi (8,556.79 km) |
| Rhondda to Chino Valley (Arizona) | 5,091.33 mi (8,193.71 km) |
| Rhondda to Chippewa Falls (Wisconsin) | 3,821.22 mi (6,149.66 km) |
| Rhondda to Choctaw (Oklahoma) | 4,498.00 mi (7,238.83 km) |
| Rhondda to Chowchilla (California) | 5,219.99 mi (8,400.76 km) |
| Rhondda to Christiansburg (Virginia) | 3,745.92 mi (6,028.48 km) |
| Rhondda to Chubbuck (Idaho) | 4,651.73 mi (7,486.24 km) |
| Rhondda to Chula Vista (California) | 5,367.40 mi (8,637.99 km) |
| Rhondda to Cibolo (Texas) | 4,838.25 mi (7,786.42 km) |
