| Rockville to Sinop | 5,408.28 mi (8,703.78 km) |
| Rockville to Siran | 5,645.24 mi (9,085.13 km) |
| Rockville to Sirnak | 5,902.41 mi (9,499.01 km) |
| Rockville to Sirvan | 5,858.85 mi (9,428.91 km) |
| Rockville to Sivas | 5,587.23 mi (8,991.79 km) |
| Rockville to Sivasli | 5,355.27 mi (8,618.47 km) |
| Rockville to Siverek | 5,772.55 mi (9,290.02 km) |
| Rockville to Sivrice | 5,737.97 mi (9,234.37 km) |
| Rockville to Sivrihisar | 5,386.94 mi (8,669.45 km) |
| Rockville to Sogut | 5,306.73 mi (8,540.36 km) |
| Rockville to Sogutlu | 5,279.31 mi (8,496.22 km) |
| Rockville to Soke | 5,293.03 mi (8,518.31 km) |
| Rockville to Solhan | 5,777.24 mi (9,297.56 km) |
| Rockville to Soma | 5,238.36 mi (8,430.32 km) |
| Rockville to Sorgun | 5,514.01 mi (8,873.94 km) |
