| Sliven to Somma Lombardo | 895.93 mi (1,441.86 km) |
| Sliven to Somma Vesuviana | 625.04 mi (1,005.90 km) |
| Sliven to Sommacampagna | 790.21 mi (1,271.72 km) |
| Sliven to Sona | 791.35 mi (1,273.55 km) |
| Sliven to Sondrio | 845.53 mi (1,360.74 km) |
| Sliven to Sora | 653.68 mi (1,052.00 km) |
| Sliven to Sorbolo | 805.21 mi (1,295.86 km) |
| Sliven to Soresina | 837.03 mi (1,347.06 km) |
| Sliven to Sorisole | 850.71 mi (1,369.09 km) |
| Sliven to Sorrento | 632.93 mi (1,018.60 km) |
| Sliven to Sorso | 922.88 mi (1,485.23 km) |
| Sliven to Sortino | 708.83 mi (1,140.76 km) |
| Sliven to Soverato Marina | 581.83 mi (936.36 km) |
| Sliven to Sovicille | 763.32 mi (1,228.44 km) |
| Sliven to Spello | 691.72 mi (1,113.21 km) |
