| Leavenworth to Silver Firs (Washington) | 1,474.69 mi (2,373.29 km) |
| Leavenworth to Silver Spring (Maryland) | 957.79 mi (1,541.42 km) |
| Leavenworth to Silver Springs Shores (Florida) | 1,018.61 mi (1,639.29 km) |
| Leavenworth to Silverdale (Washington) | 1,495.77 mi (2,407.21 km) |
| Leavenworth to Silverton (Oregon) | 1,471.51 mi (2,368.16 km) |
| Leavenworth to Simi Valley (California) | 1,359.30 mi (2,187.58 km) |
| Leavenworth to Simpsonville (South Carolina) | 766.55 mi (1,233.65 km) |
| Leavenworth to Sioux City (Iowa) | 232.14 mi (373.59 km) |
| Leavenworth to Sioux Falls (South Dakota) | 305.93 mi (492.34 km) |
| Leavenworth to Skokie (Illinois) | 420.29 mi (676.40 km) |
| Leavenworth to Sleepy Hollow (New York) | 1,114.79 mi (1,794.08 km) |
| Leavenworth to Slidell (Louisiana) | 688.72 mi (1,108.39 km) |
| Leavenworth to Smithfield (North Carolina) | 945.29 mi (1,521.30 km) |
| Leavenworth to Smithfield (Utah) | 902.23 mi (1,452.00 km) |
| Leavenworth to Smithville (Missouri) | 19.24 mi (30.97 km) |
