| Keystone to Sudbury | 4,437.80 mi (7,141.95 km) |
| Keystone to Sunbury | 4,399.53 mi (7,080.36 km) |
| Keystone to Sunderland | 4,311.95 mi (6,939.41 km) |
| Keystone to Sunninghill | 4,390.14 mi (7,065.25 km) |
| Keystone to Surbiton | 4,404.90 mi (7,089.00 km) |
| Keystone to Sutton | 4,409.99 mi (7,097.19 km) |
| Keystone to Sutton Coldfield | 4,324.85 mi (6,960.17 km) |
| Keystone to Sutton in Ashfield | 4,340.13 mi (6,984.76 km) |
| Keystone to Sutton on Hull | 4,369.52 mi (7,032.06 km) |
| Keystone to Swadlincote | 4,332.86 mi (6,973.06 km) |
| Keystone to Swallownest | 4,334.29 mi (6,975.37 km) |
| Keystone to Swanage | 4,346.61 mi (6,995.19 km) |
| Keystone to Swindon | 4,340.53 mi (6,985.40 km) |
| Keystone to Swinton | 4,333.01 mi (6,973.31 km) |
| Keystone to Swinton | 4,291.27 mi (6,906.13 km) |
