| Silla to Smolyan | 1,323.98 mi (2,130.73 km) |
| Silla to Sofia | 1,254.33 mi (2,018.65 km) |
| Silla to Sopot | 1,326.31 mi (2,134.48 km) |
| Silla to Sozopol | 1,476.49 mi (2,376.18 km) |
| Silla to Sredets | 1,451.08 mi (2,335.28 km) |
| Silla to Stamboliyski | 1,314.83 mi (2,116.02 km) |
| Silla to Stara Zagora | 1,371.93 mi (2,207.91 km) |
| Silla to Svilengrad | 1,400.93 mi (2,254.58 km) |
| Silla to Svishtov | 1,359.42 mi (2,187.78 km) |
| Silla to Targovishte | 1,420.08 mi (2,285.39 km) |
| Silla to Teteven | 1,302.42 mi (2,096.05 km) |
| Silla to Troyan | 1,325.09 mi (2,132.53 km) |
| Silla to Tryavna | 1,364.70 mi (2,196.27 km) |
| Silla to Tutrakan | 1,424.35 mi (2,292.27 km) |
| Silla to Varna | 1,487.14 mi (2,393.32 km) |
