| Cities | Distance |
|---|---|
| Ustron to Smolyan | 629.51 mi (1,013.10 km) |
| Ustron to Sofia | 530.68 mi (854.05 km) |
| Ustron to Sopot | 564.62 mi (908.67 km) |
| Ustron to Sozopol | 659.47 mi (1,061.31 km) |
| Ustron to Sredets | 648.11 mi (1,043.03 km) |
| Ustron to Stamboliyski | 591.48 mi (951.89 km) |
| Ustron to Stara Zagora | 600.14 mi (965.84 km) |
| Ustron to Svilengrad | 654.14 mi (1,052.73 km) |
| Ustron to Svishtov | 522.91 mi (841.55 km) |
| Ustron to Targovishte | 579.44 mi (932.52 km) |
| Ustron to Teteven | 536.94 mi (864.13 km) |
| Ustron to Troyan | 549.64 mi (884.55 km) |
| Ustron to Tryavna | 570.56 mi (918.22 km) |
| Ustron to Tutrakan | 537.29 mi (864.69 km) |
| Ustron to Varna | 623.31 mi (1,003.13 km) |