| Silkeborg to Smolyan | 1,215.34 mi (1,955.90 km) |
| Silkeborg to Sofia | 1,113.98 mi (1,792.78 km) |
| Silkeborg to Sopot | 1,152.55 mi (1,854.85 km) |
| Silkeborg to Sozopol | 1,246.53 mi (2,006.09 km) |
| Silkeborg to Sredets | 1,236.21 mi (1,989.49 km) |
| Silkeborg to Stamboliyski | 1,177.96 mi (1,895.74 km) |
| Silkeborg to Stara Zagora | 1,188.98 mi (1,913.48 km) |
| Silkeborg to Svilengrad | 1,242.99 mi (2,000.39 km) |
| Silkeborg to Svishtov | 1,111.76 mi (1,789.21 km) |
| Silkeborg to Targovishte | 1,167.14 mi (1,878.32 km) |
| Silkeborg to Teteven | 1,124.25 mi (1,809.31 km) |
| Silkeborg to Troyan | 1,137.83 mi (1,831.16 km) |
| Silkeborg to Tryavna | 1,159.49 mi (1,866.02 km) |
| Silkeborg to Tutrakan | 1,122.76 mi (1,806.91 km) |
| Silkeborg to Varna | 1,207.46 mi (1,943.22 km) |
