| Ulbroka to Smolyan | 1,060.74 mi (1,707.10 km) |
| Ulbroka to Sofia | 984.32 mi (1,584.11 km) |
| Ulbroka to Sopot | 987.09 mi (1,588.57 km) |
| Ulbroka to Sozopol | 1,014.25 mi (1,632.27 km) |
| Ulbroka to Sredets | 1,015.79 mi (1,634.75 km) |
| Ulbroka to Stamboliyski | 1,022.64 mi (1,645.78 km) |
| Ulbroka to Stara Zagora | 1,003.66 mi (1,615.24 km) |
| Ulbroka to Svilengrad | 1,051.35 mi (1,691.98 km) |
| Ulbroka to Svishtov | 921.26 mi (1,482.63 km) |
| Ulbroka to Targovishte | 950.77 mi (1,530.11 km) |
| Ulbroka to Teteven | 968.45 mi (1,558.58 km) |
| Ulbroka to Troyan | 970.95 mi (1,562.59 km) |
| Ulbroka to Tryavna | 973.36 mi (1,566.47 km) |
| Ulbroka to Tutrakan | 895.90 mi (1,441.82 km) |
| Ulbroka to Varna | 960.98 mi (1,546.54 km) |
