| Herndon to Senftenberg | 4,234.37 mi (6,814.56 km) |
| Herndon to Siegburg | 3,989.74 mi (6,420.86 km) |
| Herndon to Siegen | 4,019.82 mi (6,469.27 km) |
| Herndon to Sigmaringen | 4,151.16 mi (6,680.65 km) |
| Herndon to Simbach am Inn | 4,300.75 mi (6,921.39 km) |
| Herndon to Simmerath | 3,959.00 mi (6,371.39 km) |
| Herndon to Sindelfingen | 4,123.25 mi (6,635.73 km) |
| Herndon to Sinsheim | 4,102.23 mi (6,601.90 km) |
| Herndon to Sinzheim | 4,087.48 mi (6,578.16 km) |
| Herndon to Sinzig | 3,998.79 mi (6,435.44 km) |
| Herndon to Soest | 4,004.11 mi (6,444.00 km) |
| Herndon to Solingen | 3,974.80 mi (6,396.83 km) |
| Herndon to Soltau | 4,030.97 mi (6,487.22 km) |
| Herndon to Sommerda | 4,133.68 mi (6,652.52 km) |
| Herndon to Sondershausen | 4,117.77 mi (6,626.92 km) |
