| Pittsburgh to Solofra | 4,693.78 mi (7,553.91 km) |
| Pittsburgh to Somma Lombardo | 4,252.73 mi (6,844.11 km) |
| Pittsburgh to Somma Vesuviana | 4,674.54 mi (7,522.94 km) |
| Pittsburgh to Sommacampagna | 4,352.18 mi (7,004.16 km) |
| Pittsburgh to Sona | 4,350.29 mi (7,001.12 km) |
| Pittsburgh to Sondrio | 4,284.36 mi (6,895.00 km) |
| Pittsburgh to Sora | 4,606.40 mi (7,413.28 km) |
| Pittsburgh to Sorbolo | 4,355.37 mi (7,009.29 km) |
| Pittsburgh to Soresina | 4,314.94 mi (6,944.22 km) |
| Pittsburgh to Sorisole | 4,290.68 mi (6,905.18 km) |
| Pittsburgh to Sorrento | 4,681.49 mi (7,534.13 km) |
| Pittsburgh to Sorso | 4,421.98 mi (7,116.49 km) |
| Pittsburgh to Sortino | 4,849.62 mi (7,804.72 km) |
| Pittsburgh to Soverato Marina | 4,853.93 mi (7,811.64 km) |
| Pittsburgh to Sovicille | 4,445.50 mi (7,154.35 km) |
