| West Falls Church to Sinop | 5,420.26 mi (8,723.07 km) |
| West Falls Church to Siran | 5,657.35 mi (9,104.62 km) |
| West Falls Church to Sirnak | 5,914.53 mi (9,518.51 km) |
| West Falls Church to Sirvan | 5,870.99 mi (9,448.44 km) |
| West Falls Church to Sivas | 5,599.11 mi (9,010.89 km) |
| West Falls Church to Sivasli | 5,366.30 mi (8,636.22 km) |
| West Falls Church to Siverek | 5,784.40 mi (9,309.09 km) |
| West Falls Church to Sivrice | 5,749.90 mi (9,253.56 km) |
| West Falls Church to Sivrihisar | 5,398.28 mi (8,687.69 km) |
| West Falls Church to Sogut | 5,318.02 mi (8,558.53 km) |
| West Falls Church to Sogutlu | 5,290.75 mi (8,514.63 km) |
| West Falls Church to Soke | 5,303.73 mi (8,535.54 km) |
| West Falls Church to Solhan | 5,789.38 mi (9,317.11 km) |
| West Falls Church to Soma | 5,249.29 mi (8,447.92 km) |
| West Falls Church to Sorgun | 5,525.73 mi (8,892.80 km) |
