| Casteldaccia to Smolyan | 640.31 mi (1,030.48 km) |
| Casteldaccia to Sofia | 606.96 mi (976.81 km) |
| Casteldaccia to Sopot | 669.92 mi (1,078.14 km) |
| Casteldaccia to Sozopol | 804.60 mi (1,294.87 km) |
| Casteldaccia to Sredets | 778.88 mi (1,253.48 km) |
| Casteldaccia to Stamboliyski | 645.59 mi (1,038.97 km) |
| Casteldaccia to Stara Zagora | 706.28 mi (1,136.65 km) |
| Casteldaccia to Svilengrad | 717.90 mi (1,155.35 km) |
| Casteldaccia to Svishtov | 726.63 mi (1,169.39 km) |
| Casteldaccia to Targovishte | 771.48 mi (1,241.58 km) |
| Casteldaccia to Teteven | 655.92 mi (1,055.60 km) |
| Casteldaccia to Troyan | 675.26 mi (1,086.73 km) |
| Casteldaccia to Tryavna | 710.77 mi (1,143.87 km) |
| Casteldaccia to Tutrakan | 796.45 mi (1,281.77 km) |
| Casteldaccia to Varna | 832.90 mi (1,340.43 km) |
