| Swansea to Snodland | 4,223.46 mi (6,797.00 km) |
| Swansea to Soham | 4,188.27 mi (6,740.37 km) |
| Swansea to Solihull | 4,105.41 mi (6,607.02 km) |
| Swansea to Sompting | 4,208.36 mi (6,772.70 km) |
| Swansea to South Hayling | 4,184.72 mi (6,734.65 km) |
| Swansea to South Normanton | 4,101.87 mi (6,601.33 km) |
| Swansea to South Ockendon | 4,211.67 mi (6,778.03 km) |
| Swansea to South Shields | 4,045.31 mi (6,510.29 km) |
| Swansea to Southall | 4,185.98 mi (6,736.69 km) |
| Swansea to Southampton | 4,164.48 mi (6,702.09 km) |
| Swansea to Southborough | 4,221.67 mi (6,794.13 km) |
| Swansea to Southbourne | 4,154.41 mi (6,685.88 km) |
| Swansea to Southend | 4,226.68 mi (6,802.18 km) |
| Swansea to Southgate | 4,192.03 mi (6,746.42 km) |
| Swansea to Southport | 4,024.10 mi (6,476.16 km) |
