| Houston to Senftenberg | 5,383.16 mi (8,663.36 km) |
| Houston to Siegburg | 5,155.07 mi (8,296.29 km) |
| Houston to Siegen | 5,183.40 mi (8,341.88 km) |
| Houston to Sigmaringen | 5,326.15 mi (8,571.61 km) |
| Houston to Simbach am Inn | 5,468.48 mi (8,800.66 km) |
| Houston to Simmerath | 5,126.78 mi (8,250.76 km) |
| Houston to Sindelfingen | 5,295.81 mi (8,522.78 km) |
| Houston to Sinsheim | 5,272.51 mi (8,485.28 km) |
| Houston to Sinzheim | 5,261.13 mi (8,466.97 km) |
| Houston to Sinzig | 5,165.37 mi (8,312.85 km) |
| Houston to Soest | 5,163.84 mi (8,310.39 km) |
| Houston to Solingen | 5,138.42 mi (8,269.49 km) |
| Houston to Soltau | 5,179.39 mi (8,335.42 km) |
| Houston to Sommerda | 5,290.28 mi (8,513.88 km) |
| Houston to Sondershausen | 5,273.70 mi (8,487.20 km) |
