| Stamboliyski to Somma Lombardo | 823.83 mi (1,325.82 km) |
| Stamboliyski to Somma Vesuviana | 529.33 mi (851.87 km) |
| Stamboliyski to Sommacampagna | 718.02 mi (1,155.55 km) |
| Stamboliyski to Sona | 719.35 mi (1,157.68 km) |
| Stamboliyski to Sondrio | 777.15 mi (1,250.70 km) |
| Stamboliyski to Sora | 561.54 mi (903.71 km) |
| Stamboliyski to Sorbolo | 729.43 mi (1,173.91 km) |
| Stamboliyski to Soresina | 763.43 mi (1,228.63 km) |
| Stamboliyski to Sorisole | 779.59 mi (1,254.62 km) |
| Stamboliyski to Sorrento | 536.54 mi (863.47 km) |
| Stamboliyski to Sorso | 830.03 mi (1,335.81 km) |
| Stamboliyski to Sortino | 610.29 mi (982.16 km) |
| Stamboliyski to Soverato Marina | 482.64 mi (776.73 km) |
| Stamboliyski to Sovicille | 679.18 mi (1,093.03 km) |
| Stamboliyski to Spello | 606.00 mi (975.26 km) |
