| Dallas to Smolyan | 6,094.68 mi (9,808.44 km) |
| Dallas to Sofia | 5,990.63 mi (9,640.99 km) |
| Dallas to Sopot | 6,045.17 mi (9,728.76 km) |
| Dallas to Sozopol | 6,162.53 mi (9,917.63 km) |
| Dallas to Sredets | 6,148.10 mi (9,894.41 km) |
| Dallas to Stamboliyski | 6,062.07 mi (9,755.96 km) |
| Dallas to Stara Zagora | 6,088.35 mi (9,798.26 km) |
| Dallas to Svilengrad | 6,140.85 mi (9,882.74 km) |
| Dallas to Svishtov | 6,020.11 mi (9,688.43 km) |
| Dallas to Targovishte | 6,081.81 mi (9,787.72 km) |
| Dallas to Teteven | 6,014.74 mi (9,679.78 km) |
| Dallas to Troyan | 6,032.73 mi (9,708.74 km) |
| Dallas to Tryavna | 6,061.86 mi (9,755.62 km) |
| Dallas to Tutrakan | 6,043.65 mi (9,726.31 km) |
| Dallas to Varna | 6,130.24 mi (9,865.67 km) |
