| Theux to Sofia | 988.21 mi (1,590.37 km) |
| Theux to Sopot | 1,046.78 mi (1,684.62 km) |
| Theux to Sozopol | 1,176.58 mi (1,893.52 km) |
| Theux to Sredets | 1,158.73 mi (1,864.80 km) |
| Theux to Stamboliyski | 1,060.49 mi (1,706.70 km) |
| Theux to Stara Zagora | 1,092.17 mi (1,757.67 km) |
| Theux to Svilengrad | 1,142.84 mi (1,839.22 km) |
| Theux to Svishtov | 1,031.79 mi (1,660.50 km) |
| Theux to Targovishte | 1,097.14 mi (1,765.67 km) |
| Theux to Teteven | 1,016.12 mi (1,635.28 km) |
| Theux to Troyan | 1,035.61 mi (1,666.66 km) |
| Theux to Tryavna | 1,068.02 mi (1,718.80 km) |
| Theux to Tutrakan | 1,068.16 mi (1,719.03 km) |
| Theux to Varna | 1,154.01 mi (1,857.21 km) |
| Theux to Veliki Preslav | 1,110.10 mi (1,786.53 km) |
