| South Charleston to Smolyan | 5,234.65 mi (8,424.36 km) |
| South Charleston to Sofia | 5,131.67 mi (8,258.62 km) |
| South Charleston to Sopot | 5,190.27 mi (8,352.93 km) |
| South Charleston to Sozopol | 5,316.06 mi (8,555.37 km) |
| South Charleston to Sredets | 5,299.63 mi (8,528.93 km) |
| South Charleston to Stamboliyski | 5,204.08 mi (8,375.15 km) |
| South Charleston to Stara Zagora | 5,235.25 mi (8,425.31 km) |
| South Charleston to Svilengrad | 5,286.35 mi (8,507.55 km) |
| South Charleston to Svishtov | 5,171.79 mi (8,323.19 km) |
| South Charleston to Targovishte | 5,235.68 mi (8,426.01 km) |
| South Charleston to Teteven | 5,159.62 mi (8,303.61 km) |
| South Charleston to Troyan | 5,178.84 mi (8,334.54 km) |
| South Charleston to Tryavna | 5,210.35 mi (8,385.25 km) |
| South Charleston to Tutrakan | 5,201.63 mi (8,371.21 km) |
| South Charleston to Varna | 5,288.44 mi (8,510.92 km) |
