| Bollene to Smolyan | 1,023.67 mi (1,647.44 km) |
| Bollene to Sofia | 935.75 mi (1,505.94 km) |
| Bollene to Sopot | 1,006.78 mi (1,620.25 km) |
| Bollene to Sozopol | 1,156.50 mi (1,861.21 km) |
| Bollene to Sredets | 1,132.91 mi (1,823.25 km) |
| Bollene to Stamboliyski | 1,004.83 mi (1,617.12 km) |
| Bollene to Stara Zagora | 1,054.83 mi (1,697.59 km) |
| Bollene to Svilengrad | 1,094.14 mi (1,760.84 km) |
| Bollene to Svishtov | 1,023.13 mi (1,646.56 km) |
| Bollene to Targovishte | 1,088.59 mi (1,751.92 km) |
| Bollene to Teteven | 978.81 mi (1,575.24 km) |
| Bollene to Troyan | 1,001.55 mi (1,611.84 km) |
| Bollene to Tryavna | 1,040.53 mi (1,674.57 km) |
| Bollene to Tutrakan | 1,080.73 mi (1,739.27 km) |
| Bollene to Varna | 1,154.83 mi (1,858.52 km) |
