| Spaichingen to Smolyan | 899.14 mi (1,447.03 km) |
| Spaichingen to Sofia | 797.78 mi (1,283.91 km) |
| Spaichingen to Sopot | 860.78 mi (1,385.29 km) |
| Spaichingen to Sozopol | 998.52 mi (1,606.96 km) |
| Spaichingen to Sredets | 978.68 mi (1,575.03 km) |
| Spaichingen to Stamboliyski | 870.58 mi (1,401.07 km) |
| Spaichingen to Stara Zagora | 907.71 mi (1,460.82 km) |
| Spaichingen to Svilengrad | 956.09 mi (1,538.68 km) |
| Spaichingen to Svishtov | 854.70 mi (1,375.51 km) |
| Spaichingen to Targovishte | 921.33 mi (1,482.73 km) |
| Spaichingen to Teteven | 830.28 mi (1,336.20 km) |
| Spaichingen to Troyan | 851.06 mi (1,369.64 km) |
| Spaichingen to Tryavna | 885.94 mi (1,425.79 km) |
| Spaichingen to Tutrakan | 898.71 mi (1,446.34 km) |
| Spaichingen to Varna | 982.17 mi (1,580.65 km) |
