| Sleaford to Decatur (Georgia) | 4,158.25 mi (6,692.06 km) |
| Sleaford to Decatur (Illinois) | 4,036.34 mi (6,495.87 km) |
| Sleaford to Deer Park (New York) | 3,389.04 mi (5,454.13 km) |
| Sleaford to Deer Park (Texas) | 4,791.51 mi (7,711.18 km) |
| Sleaford to Deerfield (Illinois) | 3,884.40 mi (6,251.34 km) |
| Sleaford to Deerfield Beach (Florida) | 4,369.56 mi (7,032.13 km) |
| Sleaford to Defiance (Ohio) | 3,795.54 mi (6,108.33 km) |
| Sleaford to DeForest (Wisconsin) | 3,888.41 mi (6,257.79 km) |
| Sleaford to DeKalb (Illinois) | 3,928.76 mi (6,322.73 km) |
| Sleaford to Del Aire (California) | 5,374.92 mi (8,650.10 km) |
| Sleaford to Del City (Oklahoma) | 4,575.60 mi (7,363.72 km) |
| Sleaford to Del Rio (Texas) | 5,027.17 mi (8,090.44 km) |
| Sleaford to DeLand (Florida) | 4,277.34 mi (6,883.71 km) |
| Sleaford to Delano (California) | 5,295.13 mi (8,521.69 km) |
| Sleaford to Delaware (Ohio) | 3,793.19 mi (6,104.55 km) |
