| Bopfingen to Smolyan | 858.04 mi (1,380.88 km) |
| Bopfingen to Sofia | 754.74 mi (1,214.63 km) |
| Bopfingen to Sopot | 813.91 mi (1,309.86 km) |
| Bopfingen to Sozopol | 945.82 mi (1,522.14 km) |
| Bopfingen to Sredets | 927.36 mi (1,492.44 km) |
| Bopfingen to Stamboliyski | 827.10 mi (1,331.08 km) |
| Bopfingen to Stara Zagora | 859.64 mi (1,383.45 km) |
| Bopfingen to Svilengrad | 909.92 mi (1,464.38 km) |
| Bopfingen to Svishtov | 801.10 mi (1,289.24 km) |
| Bopfingen to Targovishte | 866.98 mi (1,395.26 km) |
| Bopfingen to Teteven | 783.25 mi (1,260.51 km) |
| Bopfingen to Troyan | 803.00 mi (1,292.30 km) |
| Bopfingen to Tryavna | 835.99 mi (1,345.40 km) |
| Bopfingen to Tutrakan | 840.28 mi (1,352.30 km) |
| Bopfingen to Varna | 925.37 mi (1,489.24 km) |
