| River Forest to Silver Firs (Washington) | 1,715.34 mi (2,760.57 km) |
| River Forest to Silver Spring (Maryland) | 601.41 mi (967.87 km) |
| River Forest to Silver Springs Shores (Florida) | 940.98 mi (1,514.36 km) |
| River Forest to Silverdale (Washington) | 1,739.94 mi (2,800.16 km) |
| River Forest to Silverton (Oregon) | 1,753.00 mi (2,821.19 km) |
| River Forest to Simi Valley (California) | 1,751.86 mi (2,819.35 km) |
| River Forest to Simpsonville (South Carolina) | 579.43 mi (932.50 km) |
| River Forest to Sioux City (Iowa) | 440.49 mi (708.90 km) |
| River Forest to Sioux Falls (South Dakota) | 466.18 mi (750.25 km) |
| River Forest to Skokie (Illinois) | 10.56 mi (17.00 km) |
| River Forest to Sleepy Hollow (New York) | 723.12 mi (1,163.75 km) |
| River Forest to Slidell (Louisiana) | 809.31 mi (1,302.46 km) |
| River Forest to Smithfield (North Carolina) | 673.89 mi (1,084.52 km) |
| River Forest to Smithfield (Utah) | 1,231.24 mi (1,981.48 km) |
| River Forest to Smithville (Missouri) | 393.97 mi (634.03 km) |
