| Westbury to Smolyan | 1,433.44 mi (2,306.90 km) |
| Westbury to Sofia | 1,331.27 mi (2,142.48 km) |
| Westbury to Sopot | 1,392.41 mi (2,240.86 km) |
| Westbury to Sozopol | 1,525.62 mi (2,455.25 km) |
| Westbury to Sredets | 1,507.07 mi (2,425.40 km) |
| Westbury to Stamboliyski | 1,403.98 mi (2,259.48 km) |
| Westbury to Stara Zagora | 1,438.61 mi (2,315.21 km) |
| Westbury to Svilengrad | 1,488.23 mi (2,395.07 km) |
| Westbury to Svishtov | 1,380.91 mi (2,222.35 km) |
| Westbury to Targovishte | 1,446.74 mi (2,328.30 km) |
| Westbury to Teteven | 1,361.77 mi (2,191.56 km) |
| Westbury to Troyan | 1,381.91 mi (2,223.97 km) |
| Westbury to Tryavna | 1,415.44 mi (2,277.94 km) |
| Westbury to Tutrakan | 1,419.15 mi (2,283.90 km) |
| Westbury to Varna | 1,504.66 mi (2,421.51 km) |
