| Westminster to Smolyan | 1,354.82 mi (2,180.37 km) |
| Westminster to Sofia | 1,252.01 mi (2,014.92 km) |
| Westminster to Sopot | 1,311.88 mi (2,111.26 km) |
| Westminster to Sozopol | 1,443.08 mi (2,322.41 km) |
| Westminster to Sredets | 1,425.00 mi (2,293.31 km) |
| Westminster to Stamboliyski | 1,324.55 mi (2,131.66 km) |
| Westminster to Stara Zagora | 1,357.65 mi (2,184.93 km) |
| Westminster to Svilengrad | 1,407.87 mi (2,265.74 km) |
| Westminster to Svishtov | 1,298.28 mi (2,089.39 km) |
| Westminster to Targovishte | 1,363.78 mi (2,194.80 km) |
| Westminster to Teteven | 1,281.22 mi (2,061.92 km) |
| Westminster to Troyan | 1,301.02 mi (2,093.78 km) |
| Westminster to Tryavna | 1,333.91 mi (2,146.72 km) |
| Westminster to Tutrakan | 1,335.02 mi (2,148.50 km) |
| Westminster to Varna | 1,420.86 mi (2,286.65 km) |
