| Pittsburgh to Silver Firs (Washington) | 2,124.45 mi (3,418.98 km) |
| Pittsburgh to Silver Spring (Maryland) | 185.80 mi (299.02 km) |
| Pittsburgh to Silver Springs Shores (Florida) | 791.06 mi (1,273.09 km) |
| Pittsburgh to Silverdale (Washington) | 2,149.73 mi (3,459.65 km) |
| Pittsburgh to Silverton (Oregon) | 2,169.84 mi (3,492.02 km) |
| Pittsburgh to Simi Valley (California) | 2,153.94 mi (3,466.44 km) |
| Pittsburgh to Simpsonville (South Carolina) | 413.83 mi (666.00 km) |
| Pittsburgh to Sioux City (Iowa) | 860.18 mi (1,384.33 km) |
| Pittsburgh to Sioux Falls (South Dakota) | 885.01 mi (1,424.28 km) |
| Pittsburgh to Skokie (Illinois) | 418.01 mi (672.73 km) |
| Pittsburgh to Sleepy Hollow (New York) | 322.53 mi (519.07 km) |
| Pittsburgh to Slidell (Louisiana) | 891.61 mi (1,434.90 km) |
| Pittsburgh to Smithfield (North Carolina) | 351.70 mi (566.01 km) |
| Pittsburgh to Smithfield (Utah) | 1,650.67 mi (2,656.50 km) |
| Pittsburgh to Smithville (Missouri) | 776.11 mi (1,249.03 km) |
