| Sirvintos to Smolyan | 929.58 mi (1,496.01 km) |
| Sirvintos to Sofia | 855.53 mi (1,376.84 km) |
| Sirvintos to Sopot | 855.85 mi (1,377.36 km) |
| Sirvintos to Sozopol | 880.58 mi (1,417.15 km) |
| Sirvintos to Sredets | 882.29 mi (1,419.91 km) |
| Sirvintos to Stamboliyski | 891.72 mi (1,435.08 km) |
| Sirvintos to Stara Zagora | 871.31 mi (1,402.24 km) |
| Sirvintos to Svilengrad | 918.53 mi (1,478.22 km) |
| Sirvintos to Svishtov | 789.19 mi (1,270.07 km) |
| Sirvintos to Targovishte | 817.54 mi (1,315.71 km) |
| Sirvintos to Teteven | 837.96 mi (1,348.57 km) |
| Sirvintos to Troyan | 839.75 mi (1,351.45 km) |
| Sirvintos to Tryavna | 841.15 mi (1,353.70 km) |
| Sirvintos to Tutrakan | 762.59 mi (1,227.28 km) |
| Sirvintos to Varna | 827.25 mi (1,331.33 km) |
