| Swansea to Suffolk (Virginia) | 740.83 mi (1,192.25 km) |
| Swansea to Sugar Hill (Georgia) | 450.56 mi (725.10 km) |
| Swansea to Sugar Land (Texas) | 697.89 mi (1,123.14 km) |
| Swansea to Sugarland Run (Virginia) | 679.34 mi (1,093.30 km) |
| Swansea to Sugarmill Woods (Florida) | 802.91 mi (1,292.15 km) |
| Swansea to Suisun City (California) | 1,725.28 mi (2,776.57 km) |
| Swansea to Suitland (Maryland) | 704.11 mi (1,133.15 km) |
| Swansea to Sulphur (Louisiana) | 606.14 mi (975.49 km) |
| Swansea to Sulphur Springs (Texas) | 488.60 mi (786.33 km) |
| Swansea to Summerfield (Maryland) | 706.90 mi (1,137.64 km) |
| Swansea to Summerfield (North Carolina) | 576.83 mi (928.31 km) |
| Swansea to Summerlin South (Nevada) | 1,397.98 mi (2,249.83 km) |
| Swansea to Summerville (South Carolina) | 669.54 mi (1,077.53 km) |
| Swansea to Summit (Illinois) | 251.30 mi (404.43 km) |
| Swansea to Summit (New Jersey) | 843.39 mi (1,357.31 km) |
