| Sliven to Siegburg | 1,060.60 mi (1,706.87 km) |
| Sliven to Siegen | 1,030.99 mi (1,659.22 km) |
| Sliven to Sigmaringen | 908.09 mi (1,461.44 km) |
| Sliven to Simbach am Inn | 750.19 mi (1,207.31 km) |
| Sliven to Simmerath | 1,091.41 mi (1,756.45 km) |
| Sliven to Sindelfingen | 931.45 mi (1,499.03 km) |
| Sliven to Sinsheim | 949.80 mi (1,528.55 km) |
| Sliven to Sinzheim | 968.48 mi (1,558.62 km) |
| Sliven to Sinzig | 1,051.47 mi (1,692.18 km) |
| Sliven to Soest | 1,049.34 mi (1,688.75 km) |
| Sliven to Solingen | 1,076.04 mi (1,731.71 km) |
| Sliven to Soltau | 1,040.46 mi (1,674.46 km) |
| Sliven to Sommerda | 923.57 mi (1,486.34 km) |
| Sliven to Sondershausen | 940.41 mi (1,513.44 km) |
| Sliven to Sonneberg | 891.99 mi (1,435.51 km) |
