| Hednesford to Smolyan | 1,458.72 mi (2,347.58 km) |
| Hednesford to Sofia | 1,355.31 mi (2,181.16 km) |
| Hednesford to Sopot | 1,413.48 mi (2,274.78 km) |
| Hednesford to Sozopol | 1,541.47 mi (2,480.76 km) |
| Hednesford to Sredets | 1,524.18 mi (2,452.92 km) |
| Hednesford to Stamboliyski | 1,427.55 mi (2,297.42 km) |
| Hednesford to Stara Zagora | 1,458.60 mi (2,347.39 km) |
| Hednesford to Svilengrad | 1,509.56 mi (2,429.40 km) |
| Hednesford to Svishtov | 1,396.78 mi (2,247.90 km) |
| Hednesford to Targovishte | 1,461.60 mi (2,352.22 km) |
| Hednesford to Teteven | 1,382.83 mi (2,225.45 km) |
| Hednesford to Troyan | 1,402.13 mi (2,256.51 km) |
| Hednesford to Tryavna | 1,434.06 mi (2,307.89 km) |
| Hednesford to Tutrakan | 1,430.70 mi (2,302.48 km) |
| Hednesford to Varna | 1,517.05 mi (2,441.45 km) |
