| Rhondda to Caño Martin Peña (Puerto Rico) | 4,059.95 mi (6,533.85 km) |
| Rhondda to Cañon City (Colorado) | 4,641.50 mi (7,469.77 km) |
| Rhondda to Canóvanas (Puerto Rico) | 4,056.87 mi (6,528.90 km) |
| Rhondda to Canton (Georgia) | 4,049.93 mi (6,517.73 km) |
| Rhondda to Canton (Illinois) | 3,971.83 mi (6,392.04 km) |
| Rhondda to Canton (Mississippi) | 4,356.43 mi (7,011.00 km) |
| Rhondda to Canton (Ohio) | 3,619.26 mi (5,824.64 km) |
| Rhondda to Canyon (Texas) | 4,699.63 mi (7,563.33 km) |
| Rhondda to Canyon Lake (California) | 5,316.20 mi (8,555.60 km) |
| Rhondda to Canyon Lake (Texas) | 4,823.96 mi (7,763.41 km) |
| Rhondda to Cape Coral (Florida) | 4,319.75 mi (6,951.97 km) |
| Rhondda to Cape Girardeau (Missouri) | 4,107.28 mi (6,610.03 km) |
| Rhondda to Carbondale (Illinois) | 4,074.32 mi (6,556.98 km) |
| Rhondda to Carlisle (Pennsylvania) | 3,477.39 mi (5,596.32 km) |
| Rhondda to Carlsbad (California) | 5,348.59 mi (8,607.72 km) |
