| Merthyr Tudful to Southwick | 234.03 mi (376.64 km) |
| Merthyr Tudful to Southwick | 149.40 mi (240.43 km) |
| Merthyr Tudful to Sowerby Bridge | 149.14 mi (240.01 km) |
| Merthyr Tudful to Spalding | 154.22 mi (248.19 km) |
| Merthyr Tudful to Spennymoor | 217.27 mi (349.66 km) |
| Merthyr Tudful to Spitalfields | 142.51 mi (229.35 km) |
| Merthyr Tudful to Spondon | 116.53 mi (187.54 km) |
| Merthyr Tudful to Stafford | 90.81 mi (146.14 km) |
| Merthyr Tudful to Staines-upon-Thames | 124.90 mi (201.01 km) |
| Merthyr Tudful to Stalybridge | 132.70 mi (213.56 km) |
| Merthyr Tudful to Stamford | 137.82 mi (221.81 km) |
| Merthyr Tudful to Standish | 130.80 mi (210.51 km) |
| Merthyr Tudful to Stanford le Hope | 163.83 mi (263.66 km) |
| Merthyr Tudful to Stanley | 157.75 mi (253.87 km) |
| Merthyr Tudful to Stanmore | 131.54 mi (211.69 km) |
