| Chelmsford to Silver Firs (Washington) | 4,768.44 mi (7,674.06 km) |
| Chelmsford to Silver Spring (Maryland) | 3,679.43 mi (5,921.48 km) |
| Chelmsford to Silver Springs Shores (Florida) | 4,358.83 mi (7,014.85 km) |
| Chelmsford to Silverdale (Washington) | 4,793.54 mi (7,714.45 km) |
| Chelmsford to Silverton (Oregon) | 4,949.82 mi (7,965.96 km) |
| Chelmsford to Simi Valley (California) | 5,453.17 mi (8,776.02 km) |
| Chelmsford to Simpsonville (South Carolina) | 4,092.27 mi (6,585.88 km) |
| Chelmsford to Sioux City (Iowa) | 4,255.64 mi (6,848.78 km) |
| Chelmsford to Sioux Falls (South Dakota) | 4,216.26 mi (6,785.42 km) |
| Chelmsford to Skokie (Illinois) | 3,960.22 mi (6,373.36 km) |
| Chelmsford to Sleepy Hollow (New York) | 3,459.04 mi (5,566.79 km) |
| Chelmsford to Slidell (Louisiana) | 4,617.26 mi (7,430.76 km) |
| Chelmsford to Smithfield (North Carolina) | 3,895.26 mi (6,268.82 km) |
| Chelmsford to Smithfield (Utah) | 4,809.22 mi (7,739.69 km) |
| Chelmsford to Smithville (Missouri) | 4,343.64 mi (6,990.41 km) |
