| Sleaford to Sangeorgiu de Mures | 1,188.60 mi (1,912.87 km) |
| Sleaford to Sangeorz-Bai | 1,169.06 mi (1,881.43 km) |
| Sleaford to Sannicolau Mare | 1,052.20 mi (1,693.36 km) |
| Sleaford to Santana | 1,076.34 mi (1,732.21 km) |
| Sleaford to Satu Mare | 1,081.88 mi (1,741.11 km) |
| Sleaford to Scobinti | 1,261.40 mi (2,030.03 km) |
| Sleaford to Scornicesti | 1,267.87 mi (2,040.44 km) |
| Sleaford to Sebes | 1,174.01 mi (1,889.38 km) |
| Sleaford to Seini | 1,099.44 mi (1,769.39 km) |
| Sleaford to Sfantu-Gheorghe | 1,267.26 mi (2,039.46 km) |
| Sleaford to Sibiu | 1,203.75 mi (1,937.25 km) |
| Sleaford to Sighetu Marmatiei | 1,118.57 mi (1,800.17 km) |
| Sleaford to Sighisoara | 1,213.81 mi (1,953.44 km) |
| Sleaford to Simeria | 1,155.74 mi (1,859.98 km) |
| Sleaford to Sinaia | 1,277.07 mi (2,055.25 km) |
