| Wil to Silver Firs (Washington) | 5,227.52 mi (8,412.88 km) |
| Wil to Silver Spring (Maryland) | 4,146.68 mi (6,673.43 km) |
| Wil to Silver Springs Shores (Florida) | 4,813.26 mi (7,746.19 km) |
| Wil to Silverdale (Washington) | 5,252.07 mi (8,452.39 km) |
| Wil to Silverton (Oregon) | 5,412.00 mi (8,709.77 km) |
| Wil to Simi Valley (California) | 5,931.20 mi (9,545.35 km) |
| Wil to Simpsonville (South Carolina) | 4,558.48 mi (7,336.16 km) |
| Wil to Sioux City (Iowa) | 4,738.89 mi (7,626.50 km) |
| Wil to Sioux Falls (South Dakota) | 4,699.51 mi (7,563.13 km) |
| Wil to Skokie (Illinois) | 4,440.97 mi (7,147.05 km) |
| Wil to Sleepy Hollow (New York) | 3,926.58 mi (6,319.22 km) |
| Wil to Slidell (Louisiana) | 5,086.60 mi (8,186.09 km) |
| Wil to Smithfield (North Carolina) | 4,357.20 mi (7,012.24 km) |
| Wil to Smithfield (Utah) | 5,287.42 mi (8,509.28 km) |
| Wil to Smithville (Missouri) | 4,825.76 mi (7,766.31 km) |
