| Stamboliyski to Settimo Torinese | 861.97 mi (1,387.20 km) |
| Stamboliyski to Seveso | 802.59 mi (1,291.65 km) |
| Stamboliyski to Sezze | 591.63 mi (952.14 km) |
| Stamboliyski to Siano | 517.32 mi (832.54 km) |
| Stamboliyski to Siena | 674.35 mi (1,085.25 km) |
| Stamboliyski to Signa | 687.97 mi (1,107.18 km) |
| Stamboliyski to Silea | 655.19 mi (1,054.43 km) |
| Stamboliyski to Silvi Paese | 532.42 mi (856.84 km) |
| Stamboliyski to Sinalunga | 653.86 mi (1,052.28 km) |
| Stamboliyski to Siniscola | 776.00 mi (1,248.86 km) |
| Stamboliyski to Sinnai | 825.04 mi (1,327.78 km) |
| Stamboliyski to Siracusa | 603.33 mi (970.96 km) |
| Stamboliyski to Solaro | 804.71 mi (1,295.06 km) |
| Stamboliyski to Soliera | 705.15 mi (1,134.84 km) |
| Stamboliyski to Solofra | 508.91 mi (819.01 km) |
