| Sliven to Santander | 1,513.75 mi (2,436.15 km) |
| Sliven to Santany | 1,227.29 mi (1,975.13 km) |
| Sliven to Santiago de Compostela | 1,755.93 mi (2,825.90 km) |
| Sliven to Santiago del Teide | 2,589.34 mi (4,167.14 km) |
| Sliven to Santiponce | 1,738.90 mi (2,798.49 km) |
| Sliven to Santomera | 1,469.42 mi (2,364.81 km) |
| Sliven to Santona | 1,496.73 mi (2,408.75 km) |
| Sliven to Santurce-Antiguo | 1,476.68 mi (2,376.49 km) |
| Sliven to Sarria | 1,701.25 mi (2,737.89 km) |
| Sliven to Sauzal | 2,563.14 mi (4,124.98 km) |
| Sliven to Sedavi | 1,404.09 mi (2,259.66 km) |
| Sliven to Segorbe | 1,400.66 mi (2,254.14 km) |
| Sliven to Segovia | 1,564.17 mi (2,517.29 km) |
| Sliven to Senmanat | 1,237.58 mi (1,991.69 km) |
| Sliven to Sesena | 1,558.50 mi (2,508.16 km) |
