| Summerlin South to Siloam Springs (Arkansas) | 1,158.21 mi (1,863.96 km) |
| Summerlin South to Silver Firs (Washington) | 882.56 mi (1,420.34 km) |
| Summerlin South to Silver Spring (Maryland) | 2,092.23 mi (3,367.11 km) |
| Summerlin South to Silver Springs Shores (Florida) | 1,988.03 mi (3,199.42 km) |
| Summerlin South to Silverdale (Washington) | 881.56 mi (1,418.73 km) |
| Summerlin South to Silverton (Oregon) | 726.72 mi (1,169.54 km) |
| Summerlin South to Simi Valley (California) | 231.69 mi (372.87 km) |
| Summerlin South to Simpsonville (South Carolina) | 1,855.72 mi (2,986.49 km) |
| Summerlin South to Sioux City (Iowa) | 1,101.05 mi (1,771.97 km) |
| Summerlin South to Sioux Falls (South Dakota) | 1,108.54 mi (1,784.03 km) |
| Summerlin South to Skokie (Illinois) | 1,527.80 mi (2,458.76 km) |
| Summerlin South to Sleepy Hollow (New York) | 2,243.26 mi (3,610.18 km) |
| Summerlin South to Slidell (Louisiana) | 1,526.08 mi (2,455.98 km) |
| Summerlin South to Smithfield (North Carolina) | 2,059.76 mi (3,314.87 km) |
| Summerlin South to Smithfield (Utah) | 437.10 mi (703.44 km) |
