| Harpenden to Soham | 46.12 mi (74.23 km) |
| Harpenden to Solihull | 73.15 mi (117.73 km) |
| Harpenden to Sompting | 68.21 mi (109.78 km) |
| Harpenden to South Hayling | 76.10 mi (122.47 km) |
| Harpenden to South Normanton | 98.37 mi (158.31 km) |
| Harpenden to South Ockendon | 34.52 mi (55.55 km) |
| Harpenden to South Shields | 223.98 mi (360.46 km) |
| Harpenden to Southall | 21.13 mi (34.00 km) |
| Harpenden to Southampton | 77.82 mi (125.24 km) |
| Harpenden to Southborough | 52.64 mi (84.72 km) |
| Harpenden to Southbourne | 98.15 mi (157.96 km) |
| Harpenden to Southend | 49.12 mi (79.05 km) |
| Harpenden to Southgate | 16.08 mi (25.87 km) |
| Harpenden to Southport | 168.22 mi (270.73 km) |
| Harpenden to Southwater | 54.84 mi (88.26 km) |
