| Merthyr Tudful to Shotley Bridge | 224.95 mi (362.02 km) |
| Merthyr Tudful to Shrewsbury | 71.71 mi (115.41 km) |
| Merthyr Tudful to Sidcup | 151.00 mi (243.01 km) |
| Merthyr Tudful to Sidmouth | 73.69 mi (118.60 km) |
| Merthyr Tudful to Sileby | 117.90 mi (189.74 km) |
| Merthyr Tudful to Sittingbourne | 179.11 mi (288.25 km) |
| Merthyr Tudful to Skegness | 184.14 mi (296.35 km) |
| Merthyr Tudful to Skelmersdale | 127.38 mi (204.99 km) |
| Merthyr Tudful to Skipton | 163.53 mi (263.18 km) |
| Merthyr Tudful to Sleaford | 152.10 mi (244.78 km) |
| Merthyr Tudful to Slough | 120.75 mi (194.33 km) |
| Merthyr Tudful to Small Heath | 81.58 mi (131.30 km) |
| Merthyr Tudful to Smethwick | 79.13 mi (127.34 km) |
| Merthyr Tudful to Snaresbrook | 145.78 mi (234.61 km) |
| Merthyr Tudful to Snodland | 166.84 mi (268.50 km) |
