| Rock Island to Salisbury (New York) | 886.16 mi (1,426.14 km) |
| Rock Island to Salisbury (North Carolina) | 676.04 mi (1,087.98 km) |
| Rock Island to Salmon Creek (Washington) | 1,620.64 mi (2,608.17 km) |
| Rock Island to Salt Lake City (Utah) | 1,109.34 mi (1,785.31 km) |
| Rock Island to Sammamish (Washington) | 1,594.09 mi (2,565.44 km) |
| Rock Island to San Angelo (Texas) | 882.29 mi (1,419.91 km) |
| Rock Island to San Anselmo (California) | 1,706.92 mi (2,747.03 km) |
| Rock Island to San Antonio (Texas) | 941.25 mi (1,514.79 km) |
| Rock Island to San Benito (Texas) | 1,133.75 mi (1,824.59 km) |
| Rock Island to San Bernardino (California) | 1,536.20 mi (2,472.28 km) |
| Rock Island to San Bruno (California) | 1,707.61 mi (2,748.14 km) |
| Rock Island to San Buenaventura (California) | 1,631.02 mi (2,624.88 km) |
| Rock Island to San Carlos (California) | 1,702.03 mi (2,739.15 km) |
| Rock Island to San Carlos Park (Florida) | 1,149.67 mi (1,850.22 km) |
| Rock Island to San Clemente (California) | 1,574.53 mi (2,533.97 km) |
