| Wells to Smolyan | 1,451.22 mi (2,335.51 km) |
| Wells to Sofia | 1,349.19 mi (2,171.31 km) |
| Wells to Sopot | 1,410.56 mi (2,270.08 km) |
| Wells to Sozopol | 1,544.17 mi (2,485.10 km) |
| Wells to Sredets | 1,525.53 mi (2,455.10 km) |
| Wells to Stamboliyski | 1,421.92 mi (2,288.35 km) |
| Wells to Stara Zagora | 1,456.85 mi (2,344.57 km) |
| Wells to Svilengrad | 1,506.34 mi (2,424.22 km) |
| Wells to Svishtov | 1,399.48 mi (2,252.24 km) |
| Wells to Targovishte | 1,465.37 mi (2,358.28 km) |
| Wells to Teteven | 1,379.94 mi (2,220.80 km) |
| Wells to Troyan | 1,400.15 mi (2,253.32 km) |
| Wells to Tryavna | 1,433.80 mi (2,307.48 km) |
| Wells to Tutrakan | 1,438.02 mi (2,314.26 km) |
| Wells to Varna | 1,523.45 mi (2,451.76 km) |
