| Silverdale to Smolyan | 5,955.55 mi (9,584.54 km) |
| Silverdale to Sofia | 5,857.87 mi (9,427.33 km) |
| Silverdale to Sopot | 5,887.83 mi (9,475.55 km) |
| Silverdale to Sozopol | 5,955.32 mi (9,584.15 km) |
| Silverdale to Sredets | 5,951.08 mi (9,577.34 km) |
| Silverdale to Stamboliyski | 5,917.04 mi (9,522.56 km) |
| Silverdale to Stara Zagora | 5,918.26 mi (9,524.52 km) |
| Silverdale to Svilengrad | 5,971.29 mi (9,609.87 km) |
| Silverdale to Svishtov | 5,836.47 mi (9,392.88 km) |
| Silverdale to Targovishte | 5,881.95 mi (9,466.09 km) |
| Silverdale to Teteven | 5,861.71 mi (9,433.51 km) |
| Silverdale to Troyan | 5,872.20 mi (9,450.40 km) |
| Silverdale to Tryavna | 5,887.55 mi (9,475.10 km) |
| Silverdale to Tutrakan | 5,830.66 mi (9,383.54 km) |
| Silverdale to Varna | 5,906.84 mi (9,506.14 km) |
