| Rhondda to San Diego (California) | 5,359.63 mi (8,625.49 km) |
| Rhondda to San Diego Country Estates (California) | 5,338.31 mi (8,591.18 km) |
| Rhondda to San Dimas (California) | 5,310.87 mi (8,547.01 km) |
| Rhondda to San Fernando (California) | 5,321.46 mi (8,564.06 km) |
| Rhondda to San Francisco (California) | 5,251.80 mi (8,451.95 km) |
| Rhondda to San Gabriel (California) | 5,321.24 mi (8,563.70 km) |
| Rhondda to San Germán (Puerto Rico) | 4,120.45 mi (6,631.22 km) |
| Rhondda to San Jacinto (California) | 5,301.04 mi (8,531.20 km) |
| Rhondda to San Jose (California) | 5,259.45 mi (8,464.27 km) |
| Rhondda to San Juan (Puerto Rico) | 4,062.09 mi (6,537.31 km) |
| Rhondda to San Juan (Texas) | 5,012.30 mi (8,066.52 km) |
| Rhondda to San Juan Capistrano (California) | 5,339.88 mi (8,593.71 km) |
| Rhondda to San Leandro (California) | 5,245.84 mi (8,442.36 km) |
| Rhondda to San Lorenzo (California) | 5,246.97 mi (8,444.18 km) |
| Rhondda to San Luis (Arizona) | 5,296.03 mi (8,523.13 km) |
