| Altamont to Silver Firs (Washington) | 392.00 mi (630.86 km) |
| Altamont to Silver Spring (Maryland) | 2,328.68 mi (3,747.65 km) |
| Altamont to Silver Springs Shores (Florida) | 2,379.64 mi (3,829.66 km) |
| Altamont to Silverdale (Washington) | 380.71 mi (612.69 km) |
| Altamont to Silverton (Oregon) | 200.87 mi (323.28 km) |
| Altamont to Simi Valley (California) | 571.22 mi (919.30 km) |
| Altamont to Simpsonville (South Carolina) | 2,176.11 mi (3,502.11 km) |
| Altamont to Sioux City (Iowa) | 1,289.06 mi (2,074.54 km) |
| Altamont to Sioux Falls (South Dakota) | 1,264.28 mi (2,034.66 km) |
| Altamont to Skokie (Illinois) | 1,730.13 mi (2,784.38 km) |
| Altamont to Sleepy Hollow (New York) | 2,438.90 mi (3,925.03 km) |
| Altamont to Slidell (Louisiana) | 1,945.82 mi (3,131.50 km) |
| Altamont to Smithfield (North Carolina) | 2,352.98 mi (3,786.75 km) |
| Altamont to Smithfield (Utah) | 508.44 mi (818.26 km) |
| Altamont to Smithville (Missouri) | 1,427.18 mi (2,296.82 km) |
