| Boras to Smolyan | 1,228.79 mi (1,977.55 km) |
| Boras to Sofia | 1,131.99 mi (1,821.76 km) |
| Boras to Sopot | 1,161.18 mi (1,868.73 km) |
| Boras to Sozopol | 1,237.63 mi (1,991.77 km) |
| Boras to Sredets | 1,230.64 mi (1,980.53 km) |
| Boras to Stamboliyski | 1,190.25 mi (1,915.52 km) |
| Boras to Stara Zagora | 1,192.72 mi (1,919.49 km) |
| Boras to Svilengrad | 1,246.17 mi (2,005.52 km) |
| Boras to Svishtov | 1,111.82 mi (1,789.30 km) |
| Boras to Targovishte | 1,161.06 mi (1,868.54 km) |
| Boras to Teteven | 1,134.91 mi (1,826.46 km) |
| Boras to Troyan | 1,145.62 mi (1,843.70 km) |
| Boras to Tryavna | 1,162.20 mi (1,870.38 km) |
| Boras to Tutrakan | 1,112.31 mi (1,790.09 km) |
| Boras to Varna | 1,193.35 mi (1,920.51 km) |
