| Swansea to Rowlett (Texas) | 535.50 mi (861.81 km) |
| Swansea to Roy (Utah) | 1,180.78 mi (1,900.28 km) |
| Swansea to Royal Kunia (Hawaii) | 4,147.15 mi (6,674.19 km) |
| Swansea to Royal Oak (Michigan) | 450.86 mi (725.58 km) |
| Swansea to Royal Palm Beach (Florida) | 994.93 mi (1,601.18 km) |
| Swansea to Royse City (Texas) | 523.51 mi (842.51 km) |
| Swansea to Ruskin (Florida) | 866.95 mi (1,395.22 km) |
| Swansea to Russellville (Alabama) | 306.28 mi (492.92 km) |
| Swansea to Russellville (Arkansas) | 285.47 mi (459.42 km) |
| Swansea to Ruston (Louisiana) | 441.63 mi (710.74 km) |
| Swansea to Rutherford (New Jersey) | 857.55 mi (1,380.10 km) |
| Swansea to Rutland (Vermont) | 950.05 mi (1,528.96 km) |
| Swansea to Sabana Grande (Puerto Rico) | 1,978.71 mi (3,184.42 km) |
| Swansea to Sachse (Texas) | 533.73 mi (858.96 km) |
| Swansea to Saco (Maine) | 1,071.14 mi (1,723.83 km) |
