| Smolyan to Schiltigheim | 955.56 mi (1,537.83 km) |
| Smolyan to Scionzier | 953.61 mi (1,534.69 km) |
| Smolyan to Seclin | 1,202.88 mi (1,935.84 km) |
| Smolyan to Sedan | 1,102.17 mi (1,773.77 km) |
| Smolyan to Selestat | 958.51 mi (1,542.58 km) |
| Smolyan to Sene | 1,404.26 mi (2,259.93 km) |
| Smolyan to Senlis | 1,189.27 mi (1,913.95 km) |
| Smolyan to Sens | 1,138.49 mi (1,832.23 km) |
| Smolyan to Septemes-les-Vallons | 990.73 mi (1,594.42 km) |
| Smolyan to Serris | 1,173.37 mi (1,888.35 km) |
| Smolyan to Sete | 1,074.47 mi (1,729.20 km) |
| Smolyan to Sevran | 1,185.90 mi (1,908.53 km) |
| Smolyan to Sevres | 1,197.75 mi (1,927.59 km) |
| Smolyan to Seynod | 972.58 mi (1,565.22 km) |
| Smolyan to Seysses | 1,193.95 mi (1,921.48 km) |
