| Bosel to Smolyan | 1,107.72 mi (1,782.71 km) |
| Bosel to Sofia | 1,003.57 mi (1,615.10 km) |
| Bosel to Sopot | 1,053.03 mi (1,694.68 km) |
| Bosel to Sozopol | 1,167.19 mi (1,878.40 km) |
| Bosel to Sredets | 1,152.76 mi (1,855.18 km) |
| Bosel to Stamboliyski | 1,072.91 mi (1,726.68 km) |
| Bosel to Stara Zagora | 1,094.70 mi (1,761.75 km) |
| Bosel to Svilengrad | 1,147.86 mi (1,847.30 km) |
| Bosel to Svishtov | 1,024.83 mi (1,649.30 km) |
| Bosel to Targovishte | 1,086.46 mi (1,748.50 km) |
| Bosel to Teteven | 1,023.00 mi (1,646.35 km) |
| Bosel to Troyan | 1,039.86 mi (1,673.50 km) |
| Bosel to Tryavna | 1,067.46 mi (1,717.91 km) |
| Bosel to Tutrakan | 1,049.43 mi (1,688.90 km) |
| Bosel to Varna | 1,136.24 mi (1,828.60 km) |
