| Targu Secuiesc to Smolyan | 313.29 mi (504.18 km) |
| Targu Secuiesc to Sofia | 266.74 mi (429.28 km) |
| Targu Secuiesc to Sopot | 241.24 mi (388.23 km) |
| Targu Secuiesc to Sozopol | 259.13 mi (417.03 km) |
| Targu Secuiesc to Sredets | 257.38 mi (414.21 km) |
| Targu Secuiesc to Stamboliyski | 278.60 mi (448.37 km) |
| Targu Secuiesc to Stara Zagora | 247.42 mi (398.18 km) |
| Targu Secuiesc to Svilengrad | 292.29 mi (470.40 km) |
| Targu Secuiesc to Svishtov | 168.96 mi (271.91 km) |
| Targu Secuiesc to Targovishte | 191.04 mi (307.44 km) |
| Targu Secuiesc to Teteven | 232.00 mi (373.37 km) |
| Targu Secuiesc to Troyan | 226.30 mi (364.19 km) |
| Targu Secuiesc to Tryavna | 218.56 mi (351.73 km) |
| Targu Secuiesc to Tutrakan | 136.51 mi (219.69 km) |
| Targu Secuiesc to Varna | 211.01 mi (339.59 km) |
