| South San Francisco to Spello | 6,193.15 mi (9,966.92 km) |
| South San Francisco to Spilamberto | 6,058.42 mi (9,750.09 km) |
| South San Francisco to Spilimbergo | 6,019.03 mi (9,686.70 km) |
| South San Francisco to Spinea | 6,035.78 mi (9,713.64 km) |
| South San Francisco to Spoleto | 6,206.84 mi (9,988.95 km) |
| South San Francisco to Spoltore | 6,265.02 mi (10,082.58 km) |
| South San Francisco to Spresiano | 6,021.66 mi (9,690.92 km) |
| South San Francisco to Squinzano | 6,490.17 mi (10,444.92 km) |
| South San Francisco to Statte | 6,459.48 mi (10,395.53 km) |
| South San Francisco to Stezzano | 5,956.91 mi (9,586.73 km) |
| South San Francisco to Strada | 6,120.73 mi (9,850.36 km) |
| South San Francisco to Stradella | 5,978.45 mi (9,621.38 km) |
| South San Francisco to Striano | 6,372.07 mi (10,254.86 km) |
| South San Francisco to Subiaco | 6,265.88 mi (10,083.95 km) |
| South San Francisco to Sulmona | 6,282.63 mi (10,110.91 km) |
