| Probistip to Silver Firs (Washington) | 5,857.37 mi (9,426.52 km) |
| Probistip to Silver Spring (Maryland) | 4,892.28 mi (7,873.36 km) |
| Probistip to Silver Springs Shores (Florida) | 5,556.91 mi (8,942.98 km) |
| Probistip to Silverdale (Washington) | 5,880.36 mi (9,463.52 km) |
| Probistip to Silverton (Oregon) | 6,048.65 mi (9,734.36 km) |
| Probistip to Simi Valley (California) | 6,615.47 mi (10,646.58 km) |
| Probistip to Simpsonville (South Carolina) | 5,304.14 mi (8,536.19 km) |
| Probistip to Sioux City (Iowa) | 5,461.94 mi (8,790.14 km) |
| Probistip to Sioux Falls (South Dakota) | 5,419.49 mi (8,721.83 km) |
| Probistip to Skokie (Illinois) | 5,177.36 mi (8,332.16 km) |
| Probistip to Sleepy Hollow (New York) | 4,672.14 mi (7,519.09 km) |
| Probistip to Slidell (Louisiana) | 5,832.00 mi (9,385.70 km) |
| Probistip to Smithfield (North Carolina) | 5,102.65 mi (8,211.92 km) |
| Probistip to Smithfield (Utah) | 5,974.56 mi (9,615.12 km) |
| Probistip to Smithville (Missouri) | 5,557.98 mi (8,944.70 km) |
