| Merthyr Tudful to Saint Ives | 139.87 mi (225.10 km) |
| Merthyr Tudful to Saint Neots | 136.42 mi (219.54 km) |
| Merthyr Tudful to Sale | 124.32 mi (200.07 km) |
| Merthyr Tudful to Salford | 128.55 mi (206.87 km) |
| Merthyr Tudful to Salisbury | 82.74 mi (133.16 km) |
| Merthyr Tudful to Saltash | 99.09 mi (159.47 km) |
| Merthyr Tudful to Saltcoats | 275.04 mi (442.64 km) |
| Merthyr Tudful to Sandbach | 105.87 mi (170.39 km) |
| Merthyr Tudful to Sanderstead | 144.41 mi (232.40 km) |
| Merthyr Tudful to Sandhurst | 114.06 mi (183.56 km) |
| Merthyr Tudful to Sandiacre | 120.04 mi (193.18 km) |
| Merthyr Tudful to Sandown | 122.14 mi (196.57 km) |
| Merthyr Tudful to Sandridge | 131.48 mi (211.60 km) |
| Merthyr Tudful to Sandy | 133.94 mi (215.56 km) |
| Merthyr Tudful to Scarborough | 214.36 mi (344.99 km) |
