| Rockford to Santa Rosa (California) | 1,779.14 mi (2,863.25 km) |
| Rockford to Santaquin (Utah) | 1,190.11 mi (1,915.29 km) |
| Rockford to Santee (California) | 1,651.98 mi (2,658.60 km) |
| Rockford to Sapulpa (Oklahoma) | 572.91 mi (922.00 km) |
| Rockford to Saraland (Alabama) | 790.27 mi (1,271.81 km) |
| Rockford to Sarasota (Florida) | 1,094.42 mi (1,761.30 km) |
| Rockford to Sarasota Springs (Florida) | 1,097.69 mi (1,766.56 km) |
| Rockford to Saratoga (California) | 1,772.76 mi (2,852.98 km) |
| Rockford to Saratoga Springs (New York) | 777.59 mi (1,251.41 km) |
| Rockford to Saratoga Springs (Utah) | 1,189.85 mi (1,914.88 km) |
| Rockford to Sartell (Minnesota) | 345.83 mi (556.56 km) |
| Rockford to Satellite Beach (Florida) | 1,082.47 mi (1,742.06 km) |
| Rockford to Sauk Rapids (Minnesota) | 342.44 mi (551.11 km) |
| Rockford to Sault Ste. Marie (Michigan) | 372.41 mi (599.33 km) |
| Rockford to Savage (Minnesota) | 275.85 mi (443.94 km) |
