| Bilston to Smolyan | 1,457.97 mi (2,346.37 km) |
| Bilston to Sofia | 1,354.67 mi (2,180.13 km) |
| Bilston to Sopot | 1,413.17 mi (2,274.28 km) |
| Bilston to Sozopol | 1,541.74 mi (2,481.19 km) |
| Bilston to Sredets | 1,524.31 mi (2,453.14 km) |
| Bilston to Stamboliyski | 1,426.97 mi (2,296.49 km) |
| Bilston to Stara Zagora | 1,458.41 mi (2,347.09 km) |
| Bilston to Svilengrad | 1,509.24 mi (2,428.89 km) |
| Bilston to Svishtov | 1,397.01 mi (2,248.27 km) |
| Bilston to Targovishte | 1,461.96 mi (2,352.79 km) |
| Bilston to Teteven | 1,382.51 mi (2,224.94 km) |
| Bilston to Troyan | 1,401.90 mi (2,256.15 km) |
| Bilston to Tryavna | 1,434.01 mi (2,307.82 km) |
| Bilston to Tutrakan | 1,431.39 mi (2,303.60 km) |
| Bilston to Varna | 1,517.67 mi (2,442.46 km) |
