| Castel Gandolfo to Senftenberg | 678.09 mi (1,091.29 km) |
| Castel Gandolfo to Siegburg | 677.08 mi (1,089.65 km) |
| Castel Gandolfo to Siegen | 668.55 mi (1,075.93 km) |
| Castel Gandolfo to Sigmaringen | 469.05 mi (754.87 km) |
| Castel Gandolfo to Simbach am Inn | 450.83 mi (725.53 km) |
| Castel Gandolfo to Simmerath | 682.42 mi (1,098.25 km) |
| Castel Gandolfo to Sindelfingen | 512.88 mi (825.40 km) |
| Castel Gandolfo to Sinsheim | 549.42 mi (884.20 km) |
| Castel Gandolfo to Sinzheim | 531.28 mi (855.01 km) |
| Castel Gandolfo to Sinzig | 660.14 mi (1,062.40 km) |
| Castel Gandolfo to Soest | 711.79 mi (1,145.52 km) |
| Castel Gandolfo to Solingen | 702.24 mi (1,130.15 km) |
| Castel Gandolfo to Soltau | 787.32 mi (1,267.07 km) |
| Castel Gandolfo to Sommerda | 654.55 mi (1,053.40 km) |
| Castel Gandolfo to Sondershausen | 670.00 mi (1,078.26 km) |
