| Bad Honnef am Rhein to Settimo Torinese | 381.64 mi (614.19 km) |
| Bad Honnef am Rhein to Seveso | 356.59 mi (573.88 km) |
| Bad Honnef am Rhein to Sezze | 690.55 mi (1,111.33 km) |
| Bad Honnef am Rhein to Siano | 768.63 mi (1,236.99 km) |
| Bad Honnef am Rhein to Siena | 541.72 mi (871.82 km) |
| Bad Honnef am Rhein to Signa | 507.57 mi (816.85 km) |
| Bad Honnef am Rhein to Silea | 416.32 mi (670.00 km) |
| Bad Honnef am Rhein to Silvi Paese | 647.28 mi (1,041.70 km) |
| Bad Honnef am Rhein to Sinalunga | 555.28 mi (893.64 km) |
| Bad Honnef am Rhein to Siniscola | 705.87 mi (1,135.99 km) |
| Bad Honnef am Rhein to Sinnai | 789.54 mi (1,270.64 km) |
| Bad Honnef am Rhein to Siracusa | 1,018.89 mi (1,639.74 km) |
| Bad Honnef am Rhein to Solaro | 357.90 mi (575.99 km) |
| Bad Honnef am Rhein to Soliera | 442.74 mi (712.51 km) |
| Bad Honnef am Rhein to Solofra | 770.22 mi (1,239.54 km) |
