| Sliven to Sabinanigo | 1,352.16 mi (2,176.09 km) |
| Sliven to Sagunto | 1,393.22 mi (2,242.17 km) |
| Sliven to Salamanca | 1,641.90 mi (2,642.39 km) |
| Sliven to Salobrena | 1,632.89 mi (2,627.89 km) |
| Sliven to Salou | 1,296.32 mi (2,086.22 km) |
| Sliven to Salt | 1,199.78 mi (1,930.85 km) |
| Sliven to Salvatierra de Mino | 1,765.54 mi (2,841.36 km) |
| Sliven to Sama | 1,608.67 mi (2,588.91 km) |
| Sliven to San Adrian de Besos | 1,235.93 mi (1,989.03 km) |
| Sliven to San Agustin de Guadalix | 1,543.50 mi (2,484.03 km) |
| Sliven to San Andres de la Barca | 1,247.90 mi (2,008.30 km) |
| Sliven to San Andres de Llevaneras | 1,220.50 mi (1,964.21 km) |
| Sliven to San Andres del Rabanedo | 1,613.02 mi (2,595.91 km) |
| Sliven to San Bartolome | 2,541.57 mi (4,090.26 km) |
| Sliven to San Baudilio de Llobregat | 1,246.11 mi (2,005.42 km) |
