| Brent to Smolyan | 5,839.31 mi (9,397.46 km) |
| Brent to Sofia | 5,737.14 mi (9,233.03 km) |
| Brent to Sopot | 5,797.48 mi (9,330.14 km) |
| Brent to Sozopol | 5,926.49 mi (9,537.77 km) |
| Brent to Sredets | 5,909.31 mi (9,510.11 km) |
| Brent to Stamboliyski | 5,809.81 mi (9,349.98 km) |
| Brent to Stara Zagora | 5,843.13 mi (9,403.61 km) |
| Brent to Svilengrad | 5,893.47 mi (9,484.62 km) |
| Brent to Svishtov | 5,781.86 mi (9,305.00 km) |
| Brent to Targovishte | 5,846.45 mi (9,408.96 km) |
| Brent to Teteven | 5,766.82 mi (9,280.79 km) |
| Brent to Troyan | 5,786.53 mi (9,312.52 km) |
| Brent to Tryavna | 5,819.00 mi (9,364.77 km) |
| Brent to Tutrakan | 5,814.04 mi (9,356.79 km) |
| Brent to Varna | 5,900.72 mi (9,496.28 km) |
