| Sleaford to Kaneohe (Hawaii) | 7,119.93 mi (11,458.42 km) |
| Sleaford to Kankakee (Illinois) | 3,935.84 mi (6,334.12 km) |
| Sleaford to Kannapolis (North Carolina) | 3,928.73 mi (6,322.68 km) |
| Sleaford to Kansas City (Kansas) | 4,287.49 mi (6,900.06 km) |
| Sleaford to Kansas City (Missouri) | 4,280.55 mi (6,888.88 km) |
| Sleaford to Kapaa (Hawaii) | 7,096.90 mi (11,421.36 km) |
| Sleaford to Kapolei (Hawaii) | 7,128.60 mi (11,472.37 km) |
| Sleaford to Katy (Texas) | 4,813.81 mi (7,747.08 km) |
| Sleaford to Kaukauna (Wisconsin) | 3,799.62 mi (6,114.90 km) |
| Sleaford to Kaysville (Utah) | 4,770.76 mi (7,677.80 km) |
| Sleaford to Kearney (Missouri) | 4,261.77 mi (6,858.66 km) |
| Sleaford to Kearney (Nebraska) | 4,361.77 mi (7,019.59 km) |
| Sleaford to Kearns (Utah) | 4,793.63 mi (7,714.60 km) |
| Sleaford to Kearny (New Jersey) | 3,421.25 mi (5,505.97 km) |
| Sleaford to Keene (New Hampshire) | 3,252.32 mi (5,234.10 km) |
