| Castelbuono to Smolyan | 616.36 mi (991.93 km) |
| Castelbuono to Sofia | 586.75 mi (944.28 km) |
| Castelbuono to Sopot | 648.30 mi (1,043.34 km) |
| Castelbuono to Sozopol | 780.78 mi (1,256.55 km) |
| Castelbuono to Sredets | 755.16 mi (1,215.32 km) |
| Castelbuono to Stamboliyski | 622.97 mi (1,002.57 km) |
| Castelbuono to Stara Zagora | 683.56 mi (1,100.09 km) |
| Castelbuono to Svilengrad | 693.55 mi (1,116.15 km) |
| Castelbuono to Svishtov | 706.61 mi (1,137.18 km) |
| Castelbuono to Targovishte | 749.81 mi (1,206.70 km) |
| Castelbuono to Teteven | 635.31 mi (1,022.43 km) |
| Castelbuono to Troyan | 654.19 mi (1,052.81 km) |
| Castelbuono to Tryavna | 689.05 mi (1,108.93 km) |
| Castelbuono to Tutrakan | 776.32 mi (1,249.36 km) |
| Castelbuono to Varna | 810.41 mi (1,304.22 km) |
