| Boblingen to Smolyan | 905.76 mi (1,457.69 km) |
| Boblingen to Sofia | 803.27 mi (1,292.74 km) |
| Boblingen to Sopot | 864.30 mi (1,390.96 km) |
| Boblingen to Sozopol | 998.92 mi (1,607.61 km) |
| Boblingen to Sredets | 979.85 mi (1,576.92 km) |
| Boblingen to Stamboliyski | 875.93 mi (1,409.67 km) |
| Boblingen to Stara Zagora | 910.63 mi (1,465.52 km) |
| Boblingen to Svilengrad | 960.09 mi (1,545.12 km) |
| Boblingen to Svishtov | 854.47 mi (1,375.13 km) |
| Boblingen to Targovishte | 920.72 mi (1,481.75 km) |
| Boblingen to Teteven | 833.68 mi (1,341.68 km) |
| Boblingen to Troyan | 853.93 mi (1,374.26 km) |
| Boblingen to Tryavna | 887.80 mi (1,428.78 km) |
| Boblingen to Tutrakan | 895.67 mi (1,441.44 km) |
| Boblingen to Varna | 980.17 mi (1,577.43 km) |
