| Rockford to Stephenville (Texas) | 856.39 mi (1,378.22 km) |
| Rockford to Sterling (Colorado) | 739.62 mi (1,190.30 km) |
| Rockford to Sterling (Illinois) | 45.40 mi (73.06 km) |
| Rockford to Sterling (Virginia) | 650.71 mi (1,047.22 km) |
| Rockford to Sterling Heights (Michigan) | 308.48 mi (496.45 km) |
| Rockford to Steubenville (Ohio) | 455.54 mi (733.12 km) |
| Rockford to Stevens Point (Wisconsin) | 158.36 mi (254.85 km) |
| Rockford to Stevenson Ranch (California) | 1,680.22 mi (2,704.05 km) |
| Rockford to Stillwater (Minnesota) | 269.81 mi (434.21 km) |
| Rockford to Stillwater (Oklahoma) | 602.16 mi (969.08 km) |
| Rockford to Stockbridge (Georgia) | 658.24 mi (1,059.33 km) |
| Rockford to Stockton (California) | 1,718.75 mi (2,766.06 km) |
| Rockford to Stone Ridge (Virginia) | 645.48 mi (1,038.80 km) |
| Rockford to Stonecrest (Georgia) | 650.13 mi (1,046.29 km) |
| Rockford to Stony Brook (New York) | 827.67 mi (1,332.01 km) |
