| Sleaford to Hisarcik | 1,689.05 mi (2,718.26 km) |
| Sleaford to Hizan | 2,264.30 mi (3,644.05 km) |
| Sleaford to Hopa | 2,085.18 mi (3,355.77 km) |
| Sleaford to Huyuk | 1,843.02 mi (2,966.05 km) |
| Sleaford to Idil | 2,282.95 mi (3,674.05 km) |
| Sleaford to Igdir | 2,256.11 mi (3,630.86 km) |
| Sleaford to Ihsaniye | 1,745.21 mi (2,808.65 km) |
| Sleaford to Ilic | 2,051.11 mi (3,300.95 km) |
| Sleaford to Ilica | 2,133.66 mi (3,433.79 km) |
| Sleaford to Incesu | 1,952.46 mi (3,142.18 km) |
| Sleaford to Incirliova | 1,700.74 mi (2,737.08 km) |
| Sleaford to Inebolu | 1,746.07 mi (2,810.03 km) |
| Sleaford to Inegol | 1,660.49 mi (2,672.30 km) |
| Sleaford to Ipsala | 1,500.25 mi (2,414.42 km) |
| Sleaford to Iskenderun | 2,088.35 mi (3,360.88 km) |
