| Pittsburgh to Sinop | 5,444.76 mi (8,762.49 km) |
| Pittsburgh to Siran | 5,679.14 mi (9,139.70 km) |
| Pittsburgh to Sirnak | 5,935.96 mi (9,553.00 km) |
| Pittsburgh to Sirvan | 5,892.08 mi (9,482.39 km) |
| Pittsburgh to Sivas | 5,625.62 mi (9,053.57 km) |
| Pittsburgh to Sivasli | 5,408.30 mi (8,703.83 km) |
| Pittsburgh to Siverek | 5,811.22 mi (9,352.25 km) |
| Pittsburgh to Sivrice | 5,775.20 mi (9,294.28 km) |
| Pittsburgh to Sivrihisar | 5,434.89 mi (8,746.62 km) |
| Pittsburgh to Sogut | 5,355.52 mi (8,618.88 km) |
| Pittsburgh to Sogutlu | 5,325.63 mi (8,570.77 km) |
| Pittsburgh to Soke | 5,351.25 mi (8,612.00 km) |
| Pittsburgh to Solhan | 5,810.35 mi (9,350.86 km) |
| Pittsburgh to Soma | 5,292.99 mi (8,518.25 km) |
| Pittsburgh to Sorgun | 5,555.28 mi (8,940.36 km) |
