| Allentown to Senftenberg | 4,083.30 mi (6,571.44 km) |
| Allentown to Siegburg | 3,839.38 mi (6,178.88 km) |
| Allentown to Siegen | 3,869.36 mi (6,227.13 km) |
| Allentown to Sigmaringen | 4,001.60 mi (6,439.96 km) |
| Allentown to Simbach am Inn | 4,150.62 mi (6,679.77 km) |
| Allentown to Simmerath | 3,808.80 mi (6,129.66 km) |
| Allentown to Sindelfingen | 3,973.46 mi (6,394.67 km) |
| Allentown to Sinsheim | 3,952.24 mi (6,360.52 km) |
| Allentown to Sinzheim | 3,937.78 mi (6,337.24 km) |
| Allentown to Sinzig | 3,848.52 mi (6,193.59 km) |
| Allentown to Soest | 3,853.44 mi (6,201.51 km) |
| Allentown to Solingen | 3,824.33 mi (6,154.67 km) |
| Allentown to Soltau | 3,879.86 mi (6,244.04 km) |
| Allentown to Sommerda | 3,982.89 mi (6,409.83 km) |
| Allentown to Sondershausen | 3,966.94 mi (6,384.18 km) |
