| Altstatten to Smolyan | 845.50 mi (1,360.71 km) |
| Altstatten to Sofia | 745.11 mi (1,199.15 km) |
| Altstatten to Sopot | 809.47 mi (1,302.71 km) |
| Altstatten to Sozopol | 949.50 mi (1,528.07 km) |
| Altstatten to Sredets | 929.05 mi (1,495.16 km) |
| Altstatten to Stamboliyski | 817.89 mi (1,316.27 km) |
| Altstatten to Stara Zagora | 856.79 mi (1,378.88 km) |
| Altstatten to Svilengrad | 904.26 mi (1,455.27 km) |
| Altstatten to Svishtov | 806.50 mi (1,297.94 km) |
| Altstatten to Targovishte | 873.31 mi (1,405.46 km) |
| Altstatten to Teteven | 779.12 mi (1,253.87 km) |
| Altstatten to Troyan | 800.28 mi (1,287.92 km) |
| Altstatten to Tryavna | 835.91 mi (1,345.27 km) |
| Altstatten to Tutrakan | 852.95 mi (1,372.70 km) |
| Altstatten to Varna | 935.29 mi (1,505.20 km) |
