| Castalla to Sentrupert | 950.79 mi (1,530.15 km) |
| Castalla to Sevnica | 960.99 mi (1,546.57 km) |
| Castalla to Sezana | 890.03 mi (1,432.36 km) |
| Castalla to Skocjan | 957.31 mi (1,540.64 km) |
| Castalla to Skofja Loka | 923.66 mi (1,486.48 km) |
| Castalla to Skofljica | 929.10 mi (1,495.25 km) |
| Castalla to Slovenj Gradec | 967.50 mi (1,557.04 km) |
| Castalla to Slovenska Bistrica | 984.47 mi (1,584.34 km) |
| Castalla to Slovenske Konjice | 976.39 mi (1,571.35 km) |
| Castalla to Smarje | 976.95 mi (1,572.24 km) |
| Castalla to Smarjeske Toplice | 952.92 mi (1,533.58 km) |
| Castalla to Smartno | 942.54 mi (1,516.87 km) |
| Castalla to Smartno | 959.63 mi (1,544.37 km) |
| Castalla to Sodrazica | 924.61 mi (1,488.02 km) |
| Castalla to Solcava | 948.38 mi (1,526.28 km) |
