| Sleaford to Dardenne Prairie (Missouri) | 4,157.85 mi (6,691.42 km) |
| Sleaford to Darien (Illinois) | 3,909.35 mi (6,291.50 km) |
| Sleaford to Davenport (Iowa) | 4,015.24 mi (6,461.90 km) |
| Sleaford to Davidson (North Carolina) | 3,935.68 mi (6,333.87 km) |
| Sleaford to Davie (Florida) | 4,387.80 mi (7,061.49 km) |
| Sleaford to Davis (California) | 5,205.62 mi (8,377.64 km) |
| Sleaford to Dayton (Nevada) | 5,101.69 mi (8,210.38 km) |
| Sleaford to Dayton (Ohio) | 3,860.43 mi (6,212.75 km) |
| Sleaford to Daytona Beach (Florida) | 4,260.60 mi (6,856.78 km) |
| Sleaford to De Pere (Wisconsin) | 3,785.69 mi (6,092.48 km) |
| Sleaford to De Witt (New York) | 3,397.16 mi (5,467.20 km) |
| Sleaford to Dearborn (Michigan) | 3,703.61 mi (5,960.38 km) |
| Sleaford to Dearborn Heights (Michigan) | 3,705.86 mi (5,964.00 km) |
| Sleaford to DeBary (Florida) | 4,286.03 mi (6,897.69 km) |
| Sleaford to Decatur (Alabama) | 4,223.99 mi (6,797.86 km) |
