| Sleaford to Dobrova | 817.40 mi (1,315.48 km) |
| Sleaford to Dobrovnik | 863.16 mi (1,389.12 km) |
| Sleaford to Dobrovo | 788.41 mi (1,268.82 km) |
| Sleaford to Dol | 824.05 mi (1,326.18 km) |
| Sleaford to Dolenjske Toplice | 854.28 mi (1,374.83 km) |
| Sleaford to Domzale | 820.02 mi (1,319.70 km) |
| Sleaford to Dornava | 857.34 mi (1,379.76 km) |
| Sleaford to Dragomer | 817.80 mi (1,316.13 km) |
| Sleaford to Dravograd | 815.91 mi (1,313.08 km) |
| Sleaford to Gorenja Vas | 805.27 mi (1,295.95 km) |
| Sleaford to Gorisnica | 860.51 mi (1,384.85 km) |
| Sleaford to Gornja Radgona | 848.69 mi (1,365.84 km) |
| Sleaford to Gornji Grad | 820.69 mi (1,320.77 km) |
| Sleaford to Gornji Petrovci | 851.88 mi (1,370.97 km) |
| Sleaford to Grad | 847.65 mi (1,364.17 km) |
