| Rockford to Sonneberg | 4,441.60 mi (7,148.06 km) |
| Rockford to Sonsbeck | 4,220.57 mi (6,792.35 km) |
| Rockford to Sonthofen | 4,525.28 mi (7,282.73 km) |
| Rockford to Spaichingen | 4,444.60 mi (7,152.89 km) |
| Rockford to Spelle | 4,231.14 mi (6,809.37 km) |
| Rockford to Spenge | 4,275.93 mi (6,881.45 km) |
| Rockford to Speyer | 4,383.62 mi (7,054.75 km) |
| Rockford to Spiesen-Elversberg | 4,335.55 mi (6,977.40 km) |
| Rockford to Spremberg | 4,503.03 mi (7,246.93 km) |
| Rockford to Springe | 4,310.17 mi (6,936.55 km) |
| Rockford to Sprockhovel | 4,261.19 mi (6,857.72 km) |
| Rockford to Stade | 4,254.15 mi (6,846.40 km) |
| Rockford to Stadtallendorf | 4,345.35 mi (6,993.17 km) |
| Rockford to Stadthagen | 4,293.98 mi (6,910.49 km) |
| Rockford to Stadtlohn | 4,225.57 mi (6,800.39 km) |
