| Gary to Silver Firs (Washington) | 1,746.43 mi (2,810.61 km) |
| Gary to Silver Spring (Maryland) | 572.38 mi (921.15 km) |
| Gary to Silver Springs Shores (Florida) | 912.50 mi (1,468.53 km) |
| Gary to Silverdale (Washington) | 1,770.96 mi (2,850.09 km) |
| Gary to Silverton (Oregon) | 1,782.93 mi (2,869.35 km) |
| Gary to Simi Valley (California) | 1,773.55 mi (2,854.26 km) |
| Gary to Simpsonville (South Carolina) | 548.61 mi (882.90 km) |
| Gary to Sioux City (Iowa) | 467.97 mi (753.12 km) |
| Gary to Sioux Falls (South Dakota) | 495.83 mi (797.97 km) |
| Gary to Skokie (Illinois) | 36.83 mi (59.27 km) |
| Gary to Sleepy Hollow (New York) | 699.14 mi (1,125.15 km) |
| Gary to Slidell (Louisiana) | 792.58 mi (1,275.53 km) |
| Gary to Smithfield (North Carolina) | 641.76 mi (1,032.81 km) |
| Gary to Smithfield (Utah) | 1,258.40 mi (2,025.19 km) |
| Gary to Smithville (Missouri) | 408.86 mi (657.99 km) |
