| Osternienburg to Smolyan | 924.47 mi (1,487.79 km) |
| Osternienburg to Sofia | 820.79 mi (1,320.93 km) |
| Osternienburg to Sopot | 867.44 mi (1,396.01 km) |
| Osternienburg to Sozopol | 978.26 mi (1,574.35 km) |
| Osternienburg to Sredets | 964.36 mi (1,551.98 km) |
| Osternienburg to Stamboliyski | 888.81 mi (1,430.40 km) |
| Osternienburg to Stara Zagora | 908.07 mi (1,461.40 km) |
| Osternienburg to Svilengrad | 961.55 mi (1,547.47 km) |
| Osternienburg to Svishtov | 836.66 mi (1,346.48 km) |
| Osternienburg to Targovishte | 897.55 mi (1,444.46 km) |
| Osternienburg to Teteven | 837.73 mi (1,348.19 km) |
| Osternienburg to Troyan | 853.87 mi (1,374.17 km) |
| Osternienburg to Tryavna | 880.30 mi (1,416.71 km) |
| Osternienburg to Tutrakan | 859.68 mi (1,383.52 km) |
| Osternienburg to Varna | 946.44 mi (1,523.14 km) |
