| Sleaford to Sereflikochisar | 1,872.07 mi (3,012.80 km) |
| Sleaford to Serik | 1,875.04 mi (3,017.58 km) |
| Sleaford to Serinhisar | 1,772.42 mi (2,852.44 km) |
| Sleaford to Serinyol | 2,100.18 mi (3,379.91 km) |
| Sleaford to Seydisehir | 1,878.95 mi (3,023.87 km) |
| Sleaford to Seyhan | 2,036.06 mi (3,276.72 km) |
| Sleaford to Seyitgazi | 1,736.46 mi (2,794.56 km) |
| Sleaford to Siirt | 2,258.24 mi (3,634.29 km) |
| Sleaford to Sile | 1,614.31 mi (2,597.99 km) |
| Sleaford to Silifke | 2,010.91 mi (3,236.24 km) |
| Sleaford to Silivri | 1,565.37 mi (2,519.22 km) |
| Sleaford to Silopi | 2,310.76 mi (3,718.81 km) |
| Sleaford to Simav | 1,687.54 mi (2,715.83 km) |
| Sleaford to Sinanpasa | 1,752.35 mi (2,820.14 km) |
| Sleaford to Sindirgi | 1,649.07 mi (2,653.91 km) |
