| Barstow to Sinop | 6,840.17 mi (11,008.19 km) |
| Barstow to Siran | 7,033.57 mi (11,319.44 km) |
| Barstow to Sirnak | 7,265.44 mi (11,692.59 km) |
| Barstow to Sirvan | 7,222.56 mi (11,623.58 km) |
| Barstow to Sivas | 7,022.59 mi (11,301.77 km) |
| Barstow to Sivasli | 6,939.97 mi (11,168.80 km) |
| Barstow to Siverek | 7,195.61 mi (11,580.21 km) |
| Barstow to Sivrice | 7,150.22 mi (11,507.17 km) |
| Barstow to Sivrihisar | 6,924.65 mi (11,144.15 km) |
| Barstow to Sogut | 6,857.54 mi (11,036.14 km) |
| Barstow to Sogutlu | 6,810.19 mi (10,959.94 km) |
| Barstow to Soke | 6,926.38 mi (11,146.93 km) |
| Barstow to Solhan | 7,146.84 mi (11,501.73 km) |
| Barstow to Soma | 6,844.57 mi (11,015.28 km) |
| Barstow to Sorgun | 6,981.82 mi (11,236.16 km) |
