| Castellamonte to Smolyan | 889.21 mi (1,431.04 km) |
| Castellamonte to Sofia | 796.13 mi (1,281.25 km) |
| Castellamonte to Sopot | 865.60 mi (1,393.04 km) |
| Castellamonte to Sozopol | 1,013.18 mi (1,630.56 km) |
| Castellamonte to Sredets | 990.48 mi (1,594.03 km) |
| Castellamonte to Stamboliyski | 867.13 mi (1,395.52 km) |
| Castellamonte to Stara Zagora | 913.79 mi (1,470.61 km) |
| Castellamonte to Svilengrad | 956.16 mi (1,538.79 km) |
| Castellamonte to Svishtov | 875.93 mi (1,409.67 km) |
| Castellamonte to Targovishte | 942.23 mi (1,516.37 km) |
| Castellamonte to Teteven | 836.61 mi (1,346.39 km) |
| Castellamonte to Troyan | 859.03 mi (1,382.47 km) |
| Castellamonte to Tryavna | 897.22 mi (1,443.94 km) |
| Castellamonte to Tutrakan | 930.56 mi (1,497.59 km) |
| Castellamonte to Varna | 1,007.52 mi (1,621.45 km) |
