| Merthyr Tudful to Soham | 163.03 mi (262.37 km) |
| Merthyr Tudful to Solihull | 82.21 mi (132.31 km) |
| Merthyr Tudful to Sompting | 145.64 mi (234.39 km) |
| Merthyr Tudful to South Hayling | 123.00 mi (197.96 km) |
| Merthyr Tudful to South Normanton | 127.40 mi (205.03 km) |
| Merthyr Tudful to South Ockendon | 158.28 mi (254.73 km) |
| Merthyr Tudful to South Shields | 238.59 mi (383.97 km) |
| Merthyr Tudful to Southall | 129.65 mi (208.66 km) |
| Merthyr Tudful to Southampton | 103.13 mi (165.96 km) |
| Merthyr Tudful to Southborough | 161.94 mi (260.62 km) |
| Merthyr Tudful to Southbourne | 98.23 mi (158.08 km) |
| Merthyr Tudful to Southend | 175.75 mi (282.84 km) |
| Merthyr Tudful to Southgate | 139.48 mi (224.47 km) |
| Merthyr Tudful to Southport | 132.51 mi (213.25 km) |
| Merthyr Tudful to Southwater | 139.59 mi (224.65 km) |
