| Swansea to Somerset (New Jersey) | 835.09 mi (1,343.95 km) |
| Swansea to Somersworth (New Hampshire) | 1,046.29 mi (1,683.85 km) |
| Swansea to Somerton (Arizona) | 1,443.34 mi (2,322.82 km) |
| Swansea to Somerville (Massachusetts) | 1,025.04 mi (1,649.64 km) |
| Swansea to Somerville (New Jersey) | 829.76 mi (1,335.37 km) |
| Swansea to Sonoma (California) | 1,748.74 mi (2,814.32 km) |
| Swansea to Soquel (California) | 1,740.10 mi (2,800.41 km) |
| Swansea to South Bend (Indiana) | 291.85 mi (469.68 km) |
| Swansea to South Bradenton (Florida) | 877.34 mi (1,411.94 km) |
| Swansea to South Burlington (Vermont) | 956.44 mi (1,539.24 km) |
| Swansea to South Charleston (West Virginia) | 447.61 mi (720.36 km) |
| Swansea to South Daytona (Florida) | 827.28 mi (1,331.38 km) |
| Swansea to South El Monte (California) | 1,586.81 mi (2,553.72 km) |
| Swansea to South Elgin (Illinois) | 253.48 mi (407.94 km) |
| Swansea to South Euclid (Ohio) | 492.20 mi (792.11 km) |
