| South San Francisco to Selargius | 6,298.88 mi (10,137.07 km) |
| South San Francisco to Selvazzano Dentro | 6,031.67 mi (9,707.03 km) |
| South San Francisco to Senago | 5,945.83 mi (9,568.88 km) |
| South San Francisco to Senigallia | 6,166.83 mi (9,924.56 km) |
| South San Francisco to Seravezza | 6,066.02 mi (9,762.31 km) |
| South San Francisco to Seregno | 5,944.03 mi (9,565.99 km) |
| South San Francisco to Seriate | 5,956.87 mi (9,586.65 km) |
| South San Francisco to Sermoneta | 6,284.56 mi (10,114.02 km) |
| South San Francisco to Serramanna | 6,281.90 mi (10,109.75 km) |
| South San Francisco to Serravalle Pistoiese | 6,088.95 mi (9,799.22 km) |
| South San Francisco to Sessa Aurunca | 6,329.96 mi (10,187.09 km) |
| South San Francisco to Sesto Calende | 5,923.11 mi (9,532.32 km) |
| South San Francisco to Sesto Fiorentino | 6,103.23 mi (9,822.20 km) |
| South San Francisco to Sesto San Giovanni | 5,951.48 mi (9,577.98 km) |
| South San Francisco to Sestri Levante | 6,026.28 mi (9,698.37 km) |
