| Bolanos de Calatrava to Smolyan | 1,503.59 mi (2,419.80 km) |
| Bolanos de Calatrava to Sofia | 1,432.77 mi (2,305.82 km) |
| Bolanos de Calatrava to Sopot | 1,504.84 mi (2,421.81 km) |
| Bolanos de Calatrava to Sozopol | 1,655.27 mi (2,663.91 km) |
| Bolanos de Calatrava to Sredets | 1,629.94 mi (2,623.14 km) |
| Bolanos de Calatrava to Stamboliyski | 1,493.96 mi (2,404.29 km) |
| Bolanos de Calatrava to Stara Zagora | 1,550.73 mi (2,495.66 km) |
| Bolanos de Calatrava to Svilengrad | 1,580.36 mi (2,543.35 km) |
| Bolanos de Calatrava to Svishtov | 1,536.58 mi (2,472.89 km) |
| Bolanos de Calatrava to Targovishte | 1,597.84 mi (2,571.48 km) |
| Bolanos de Calatrava to Teteven | 1,480.59 mi (2,382.79 km) |
| Bolanos de Calatrava to Troyan | 1,503.32 mi (2,419.36 km) |
| Bolanos de Calatrava to Tryavna | 1,542.97 mi (2,483.17 km) |
| Bolanos de Calatrava to Tutrakan | 1,600.86 mi (2,576.34 km) |
| Bolanos de Calatrava to Varna | 1,664.96 mi (2,679.50 km) |
