| Port Huron to Senftenberg | 4,225.14 mi (6,799.71 km) |
| Port Huron to Siegburg | 4,001.32 mi (6,439.50 km) |
| Port Huron to Siegen | 4,028.98 mi (6,484.02 km) |
| Port Huron to Sigmaringen | 4,176.49 mi (6,721.40 km) |
| Port Huron to Simbach am Inn | 4,315.10 mi (6,944.48 km) |
| Port Huron to Simmerath | 3,974.04 mi (6,395.60 km) |
| Port Huron to Sindelfingen | 4,144.91 mi (6,670.59 km) |
| Port Huron to Sinsheim | 4,120.56 mi (6,631.40 km) |
| Port Huron to Sinzheim | 4,110.87 mi (6,615.81 km) |
| Port Huron to Sinzig | 4,012.06 mi (6,456.79 km) |
| Port Huron to Soest | 4,008.27 mi (6,450.68 km) |
| Port Huron to Solingen | 3,984.09 mi (6,411.77 km) |
| Port Huron to Soltau | 4,021.47 mi (6,471.93 km) |
| Port Huron to Sommerda | 4,133.75 mi (6,652.62 km) |
| Port Huron to Sondershausen | 4,117.04 mi (6,625.74 km) |
