| Sleaford to Dumas (Texas) | 4,717.30 mi (7,591.77 km) |
| Sleaford to Dumont (New Jersey) | 3,407.53 mi (5,483.90 km) |
| Sleaford to Duncan (Oklahoma) | 4,640.94 mi (7,468.87 km) |
| Sleaford to Duncanville (Texas) | 4,703.36 mi (7,569.33 km) |
| Sleaford to Dundalk (Maryland) | 3,583.22 mi (5,766.64 km) |
| Sleaford to Dunedin (Florida) | 4,389.05 mi (7,063.49 km) |
| Sleaford to Dunkirk (New York) | 3,547.60 mi (5,709.32 km) |
| Sleaford to Dunmore (Pennsylvania) | 3,450.35 mi (5,552.81 km) |
| Sleaford to Dunwoody (Georgia) | 4,150.34 mi (6,679.33 km) |
| Sleaford to Durango (Colorado) | 4,845.86 mi (7,798.67 km) |
| Sleaford to Durant (Oklahoma) | 4,612.91 mi (7,423.76 km) |
| Sleaford to Durham (North Carolina) | 3,834.90 mi (6,171.68 km) |
| Sleaford to Dyer (Indiana) | 3,903.58 mi (6,282.20 km) |
| Sleaford to Dyersburg (Tennessee) | 4,242.21 mi (6,827.18 km) |
| Sleaford to Eagan (Minnesota) | 3,948.90 mi (6,355.15 km) |
