| Borgloon to Sofia | 1,014.87 mi (1,633.28 km) |
| Borgloon to Sopot | 1,073.11 mi (1,727.00 km) |
| Borgloon to Sozopol | 1,202.25 mi (1,934.84 km) |
| Borgloon to Sredets | 1,184.57 mi (1,906.38 km) |
| Borgloon to Stamboliyski | 1,087.09 mi (1,749.50 km) |
| Borgloon to Stara Zagora | 1,118.36 mi (1,799.83 km) |
| Borgloon to Svilengrad | 1,169.18 mi (1,881.61 km) |
| Borgloon to Svishtov | 1,057.47 mi (1,701.84 km) |
| Borgloon to Targovishte | 1,122.68 mi (1,806.78 km) |
| Borgloon to Teteven | 1,042.45 mi (1,677.66 km) |
| Borgloon to Troyan | 1,061.84 mi (1,708.87 km) |
| Borgloon to Tryavna | 1,094.05 mi (1,760.70 km) |
| Borgloon to Tutrakan | 1,093.21 mi (1,759.36 km) |
| Borgloon to Varna | 1,179.20 mi (1,897.74 km) |
| Borgloon to Veliki Preslav | 1,135.62 mi (1,827.60 km) |
