| Bad Zwischenahn to Smolyan | 1,113.67 mi (1,792.27 km) |
| Bad Zwischenahn to Sofia | 1,009.58 mi (1,624.77 km) |
| Bad Zwischenahn to Sopot | 1,058.46 mi (1,703.42 km) |
| Bad Zwischenahn to Sozopol | 1,171.57 mi (1,885.47 km) |
| Bad Zwischenahn to Sredets | 1,157.36 mi (1,862.60 km) |
| Bad Zwischenahn to Stamboliyski | 1,078.68 mi (1,735.96 km) |
| Bad Zwischenahn to Stara Zagora | 1,099.87 mi (1,770.07 km) |
| Bad Zwischenahn to Svilengrad | 1,153.12 mi (1,855.77 km) |
| Bad Zwischenahn to Svishtov | 1,029.51 mi (1,656.84 km) |
| Bad Zwischenahn to Targovishte | 1,090.85 mi (1,755.56 km) |
| Bad Zwischenahn to Teteven | 1,028.50 mi (1,655.20 km) |
| Bad Zwischenahn to Troyan | 1,045.19 mi (1,682.07 km) |
| Bad Zwischenahn to Tryavna | 1,072.48 mi (1,725.98 km) |
| Bad Zwischenahn to Tutrakan | 1,053.36 mi (1,695.23 km) |
| Bad Zwischenahn to Varna | 1,140.14 mi (1,834.88 km) |
