| Rhondda to Saddlebrooke (Arizona) | 5,157.30 mi (8,299.88 km) |
| Rhondda to Safety Harbor (Florida) | 4,281.05 mi (6,889.68 km) |
| Rhondda to Saginaw (Michigan) | 3,606.37 mi (5,803.90 km) |
| Rhondda to Saginaw (Texas) | 4,634.66 mi (7,458.76 km) |
| Rhondda to Sahuarita (Arizona) | 5,194.70 mi (8,360.07 km) |
| Rhondda to Saks (Alabama) | 4,131.65 mi (6,649.25 km) |
| Rhondda to Salem (Massachusetts) | 3,121.14 mi (5,022.98 km) |
| Rhondda to Salem (Ohio) | 3,594.16 mi (5,784.25 km) |
| Rhondda to Salem (Oregon) | 4,860.49 mi (7,822.21 km) |
| Rhondda to Salem (Virginia) | 3,724.92 mi (5,994.67 km) |
| Rhondda to Salem Lakes (Wisconsin) | 3,807.27 mi (6,127.20 km) |
| Rhondda to Salida (California) | 5,212.58 mi (8,388.84 km) |
| Rhondda to Salina (Kansas) | 4,344.34 mi (6,991.54 km) |
| Rhondda to Salinas (California) | 5,287.75 mi (8,509.81 km) |
| Rhondda to Salisbury (Maryland) | 3,491.19 mi (5,618.52 km) |
