| Brentwood to Smolyan | 1,340.28 mi (2,156.97 km) |
| Brentwood to Sofia | 1,237.28 mi (1,991.20 km) |
| Brentwood to Sopot | 1,296.67 mi (2,086.79 km) |
| Brentwood to Sozopol | 1,427.09 mi (2,296.69 km) |
| Brentwood to Sredets | 1,409.19 mi (2,267.88 km) |
| Brentwood to Stamboliyski | 1,309.74 mi (2,107.82 km) |
| Brentwood to Stara Zagora | 1,342.28 mi (2,160.19 km) |
| Brentwood to Svilengrad | 1,392.70 mi (2,241.33 km) |
| Brentwood to Svishtov | 1,282.30 mi (2,063.66 km) |
| Brentwood to Targovishte | 1,347.66 mi (2,168.85 km) |
| Brentwood to Teteven | 1,266.01 mi (2,037.44 km) |
| Brentwood to Troyan | 1,285.68 mi (2,069.10 km) |
| Brentwood to Tryavna | 1,318.33 mi (2,121.65 km) |
| Brentwood to Tutrakan | 1,318.43 mi (2,121.81 km) |
| Brentwood to Varna | 1,404.39 mi (2,260.15 km) |
