| South San Francisco to Sangeorgiu de Mures | 6,268.12 mi (10,087.57 km) |
| South San Francisco to Sangeorz-Bai | 6,221.34 mi (10,012.29 km) |
| South San Francisco to Sannicolau Mare | 6,214.44 mi (10,001.17 km) |
| South San Francisco to Santana | 6,216.98 mi (10,005.26 km) |
| South San Francisco to Satu Mare | 6,158.55 mi (9,911.23 km) |
| South San Francisco to Scobinti | 6,264.46 mi (10,081.67 km) |
| South San Francisco to Scornicesti | 6,393.23 mi (10,288.91 km) |
| South San Francisco to Sebes | 6,286.02 mi (10,116.37 km) |
| South San Francisco to Seini | 6,169.39 mi (9,928.67 km) |
| South San Francisco to Sfantu-Gheorghe | 6,337.89 mi (10,199.84 km) |
| South San Francisco to Sibiu | 6,308.70 mi (10,152.87 km) |
| South San Francisco to Sighetu Marmatiei | 6,170.65 mi (9,930.71 km) |
| South San Francisco to Sighisoara | 6,295.55 mi (10,131.71 km) |
| South San Francisco to Simeria | 6,280.81 mi (10,107.99 km) |
| South San Francisco to Sinaia | 6,365.33 mi (10,244.02 km) |
