| Rockford to Sudbury | 3,998.24 mi (6,434.55 km) |
| Rockford to Sunbury | 3,975.74 mi (6,398.33 km) |
| Rockford to Sunderland | 3,829.71 mi (6,163.32 km) |
| Rockford to Sunninghill | 3,967.68 mi (6,385.37 km) |
| Rockford to Surbiton | 3,981.12 mi (6,407.00 km) |
| Rockford to Sutton | 3,986.25 mi (6,415.25 km) |
| Rockford to Sutton Coldfield | 3,886.26 mi (6,254.33 km) |
| Rockford to Sutton in Ashfield | 3,889.30 mi (6,259.22 km) |
| Rockford to Sutton on Hull | 3,903.44 mi (6,281.97 km) |
| Rockford to Swadlincote | 3,889.45 mi (6,259.47 km) |
| Rockford to Swallownest | 3,879.46 mi (6,243.38 km) |
| Rockford to Swanage | 3,943.95 mi (6,347.17 km) |
| Rockford to Swindon | 3,919.89 mi (6,308.45 km) |
| Rockford to Swinton | 3,875.89 mi (6,237.65 km) |
| Rockford to Swinton | 3,837.44 mi (6,175.77 km) |
