| Ionia to Senftenberg | 4,318.50 mi (6,949.95 km) |
| Ionia to Siegburg | 4,100.08 mi (6,598.44 km) |
| Ionia to Siegen | 4,127.13 mi (6,641.97 km) |
| Ionia to Sigmaringen | 4,278.07 mi (6,884.88 km) |
| Ionia to Simbach am Inn | 4,413.94 mi (7,103.55 km) |
| Ionia to Simmerath | 4,073.65 mi (6,555.90 km) |
| Ionia to Sindelfingen | 4,245.73 mi (6,832.83 km) |
| Ionia to Sinsheim | 4,220.66 mi (6,792.50 km) |
| Ionia to Sinzheim | 4,212.13 mi (6,778.77 km) |
| Ionia to Sinzig | 4,111.19 mi (6,616.32 km) |
| Ionia to Soest | 4,105.27 mi (6,606.79 km) |
| Ionia to Solingen | 4,082.34 mi (6,569.89 km) |
| Ionia to Soltau | 4,115.14 mi (6,622.68 km) |
| Ionia to Sommerda | 4,229.54 mi (6,806.78 km) |
| Ionia to Sondershausen | 4,212.67 mi (6,779.64 km) |
