| Rockford to St. Simons (Georgia) | 874.95 mi (1,408.09 km) |
| Rockford to Stafford (Texas) | 944.80 mi (1,520.50 km) |
| Rockford to Stallings (North Carolina) | 669.81 mi (1,077.95 km) |
| Rockford to Stamford (Connecticut) | 802.97 mi (1,292.26 km) |
| Rockford to Stanford (California) | 1,776.02 mi (2,858.22 km) |
| Rockford to Stanton (California) | 1,669.58 mi (2,686.93 km) |
| Rockford to Star (Idaho) | 1,383.62 mi (2,226.72 km) |
| Rockford to Starkville (Mississippi) | 608.07 mi (978.60 km) |
| Rockford to State College (Pennsylvania) | 588.09 mi (946.44 km) |
| Rockford to Staten Island (New York) | 780.31 mi (1,255.80 km) |
| Rockford to Statesboro (Georgia) | 787.20 mi (1,266.87 km) |
| Rockford to Statesville (North Carolina) | 626.76 mi (1,008.68 km) |
| Rockford to Staunton (Virginia) | 598.48 mi (963.16 km) |
| Rockford to Steamboat Springs (Colorado) | 927.39 mi (1,492.48 km) |
| Rockford to Steiner Ranch (Texas) | 956.41 mi (1,539.19 km) |
