| Irthlingborough to Dobrova | 802.78 mi (1,291.94 km) |
| Irthlingborough to Dobrovnik | 853.43 mi (1,373.46 km) |
| Irthlingborough to Dobrovo | 772.07 mi (1,242.52 km) |
| Irthlingborough to Dol | 809.92 mi (1,303.44 km) |
| Irthlingborough to Dolenjske Toplice | 839.87 mi (1,351.64 km) |
| Irthlingborough to Domzale | 805.96 mi (1,297.07 km) |
| Irthlingborough to Dornava | 846.33 mi (1,362.04 km) |
| Irthlingborough to Dragomer | 803.02 mi (1,292.34 km) |
| Irthlingborough to Dravograd | 803.94 mi (1,293.81 km) |
| Irthlingborough to Gorenja Vas | 790.34 mi (1,271.93 km) |
| Irthlingborough to Gorisnica | 849.55 mi (1,367.21 km) |
| Irthlingborough to Gornja Radgona | 838.50 mi (1,349.44 km) |
| Irthlingborough to Gornji Grad | 807.45 mi (1,299.47 km) |
| Irthlingborough to Gornji Petrovci | 842.43 mi (1,355.76 km) |
| Irthlingborough to Grad | 838.00 mi (1,348.64 km) |
