| Swanage to Silver Firs (Washington) | 4,764.84 mi (7,668.26 km) |
| Swanage to Silver Spring (Maryland) | 3,603.60 mi (5,799.43 km) |
| Swanage to Silver Springs Shores (Florida) | 4,273.54 mi (6,877.60 km) |
| Swanage to Silverdale (Washington) | 4,790.38 mi (7,709.36 km) |
| Swanage to Silverton (Oregon) | 4,943.15 mi (7,955.23 km) |
| Swanage to Simi Valley (California) | 5,426.33 mi (8,732.83 km) |
| Swanage to Simpsonville (South Carolina) | 4,015.54 mi (6,462.39 km) |
| Swanage to Sioux City (Iowa) | 4,209.63 mi (6,774.75 km) |
| Swanage to Sioux Falls (South Dakota) | 4,172.52 mi (6,715.02 km) |
| Swanage to Skokie (Illinois) | 3,902.69 mi (6,280.77 km) |
| Swanage to Sleepy Hollow (New York) | 3,383.46 mi (5,445.16 km) |
| Swanage to Slidell (Louisiana) | 4,543.41 mi (7,311.92 km) |
| Swanage to Smithfield (North Carolina) | 3,815.05 mi (6,139.73 km) |
| Swanage to Smithfield (Utah) | 4,782.65 mi (7,696.93 km) |
| Swanage to Smithville (Missouri) | 4,290.04 mi (6,904.16 km) |
