| Cities | Distance |
|---|
| Ostrov to Smolyan | 824.21 mi (1,326.43 km) |
| Ostrov to Sofia | 720.05 mi (1,158.80 km) |
| Ostrov to Sopot | 770.06 mi (1,239.29 km) |
| Ostrov to Sozopol | 887.52 mi (1,428.33 km) |
| Ostrov to Sredets | 872.16 mi (1,403.61 km) |
| Ostrov to Stamboliyski | 789.49 mi (1,270.56 km) |
| Ostrov to Stara Zagora | 812.29 mi (1,307.26 km) |
| Ostrov to Svilengrad | 865.20 mi (1,392.40 km) |
| Ostrov to Svishtov | 744.09 mi (1,197.50 km) |
| Ostrov to Targovishte | 806.91 mi (1,298.60 km) |
| Ostrov to Teteven | 739.91 mi (1,190.78 km) |
| Ostrov to Troyan | 757.11 mi (1,218.44 km) |
| Ostrov to Tryavna | 785.50 mi (1,264.14 km) |
| Ostrov to Tutrakan | 772.37 mi (1,243.01 km) |
| Ostrov to Varna | 859.15 mi (1,382.67 km) |
