| Siemiatycze to Silver Firs (Washington) | 5,207.56 mi (8,380.76 km) |
| Siemiatycze to Silver Spring (Maryland) | 4,513.47 mi (7,263.72 km) |
| Siemiatycze to Silver Springs Shores (Florida) | 5,222.88 mi (8,405.41 km) |
| Siemiatycze to Silverdale (Washington) | 5,229.16 mi (8,415.52 km) |
| Siemiatycze to Silverton (Oregon) | 5,402.93 mi (8,695.18 km) |
| Siemiatycze to Simi Valley (California) | 6,015.37 mi (9,680.80 km) |
| Siemiatycze to Simpsonville (South Carolina) | 4,925.52 mi (7,926.86 km) |
| Siemiatycze to Sioux City (Iowa) | 4,946.80 mi (7,961.11 km) |
| Siemiatycze to Sioux Falls (South Dakota) | 4,896.77 mi (7,880.58 km) |
| Siemiatycze to Skokie (Illinois) | 4,712.26 mi (7,583.65 km) |
| Siemiatycze to Sleepy Hollow (New York) | 4,294.57 mi (6,911.45 km) |
| Siemiatycze to Slidell (Louisiana) | 5,433.33 mi (8,744.10 km) |
| Siemiatycze to Smithfield (North Carolina) | 4,743.98 mi (7,634.69 km) |
| Siemiatycze to Smithfield (Utah) | 5,384.33 mi (8,665.24 km) |
| Siemiatycze to Smithville (Missouri) | 5,070.78 mi (8,160.63 km) |
