| Sleaford to Islahiye | 2,085.62 mi (3,356.47 km) |
| Sleaford to Isparta | 1,812.17 mi (2,916.41 km) |
| Sleaford to Istanbul | 1,595.78 mi (2,568.17 km) |
| Sleaford to Izmir | 1,650.56 mi (2,656.32 km) |
| Sleaford to Kadinhani | 1,853.05 mi (2,982.19 km) |
| Sleaford to Kadirli | 2,047.90 mi (3,295.77 km) |
| Sleaford to Kagithane | 1,593.58 mi (2,564.62 km) |
| Sleaford to Kahramanmaras | 2,071.01 mi (3,332.97 km) |
| Sleaford to Kahta | 2,129.68 mi (3,427.39 km) |
| Sleaford to Kaman | 1,860.17 mi (2,993.65 km) |
| Sleaford to Kangal | 2,013.06 mi (3,239.71 km) |
| Sleaford to Kapakli | 1,542.55 mi (2,482.50 km) |
| Sleaford to Karaagac | 2,087.83 mi (3,360.03 km) |
| Sleaford to Karaagac | 1,543.41 mi (2,483.88 km) |
| Sleaford to Karabuk | 1,733.52 mi (2,789.83 km) |
