| Texas City to Smolyan | 6,204.68 mi (9,985.47 km) |
| Texas City to Sofia | 6,101.24 mi (9,819.00 km) |
| Texas City to Sopot | 6,158.44 mi (9,911.05 km) |
| Texas City to Sozopol | 6,281.10 mi (10,108.45 km) |
| Texas City to Sredets | 6,265.46 mi (10,083.28 km) |
| Texas City to Stamboliyski | 6,173.38 mi (9,935.09 km) |
| Texas City to Stara Zagora | 6,202.80 mi (9,982.44 km) |
| Texas City to Svilengrad | 6,254.47 mi (10,065.59 km) |
| Texas City to Svishtov | 6,137.42 mi (9,877.22 km) |
| Texas City to Targovishte | 6,200.49 mi (9,978.73 km) |
| Texas City to Teteven | 6,127.84 mi (9,861.81 km) |
| Texas City to Troyan | 6,146.63 mi (9,892.04 km) |
| Texas City to Tryavna | 6,177.27 mi (9,941.36 km) |
| Texas City to Tutrakan | 6,164.69 mi (9,921.11 km) |
| Texas City to Varna | 6,251.51 mi (10,060.84 km) |
