| Holyhead to Dobrova | 983.64 mi (1,583.01 km) |
| Holyhead to Dobrovnik | 1,034.28 mi (1,664.51 km) |
| Holyhead to Dobrovo | 952.53 mi (1,532.96 km) |
| Holyhead to Dol | 990.85 mi (1,594.63 km) |
| Holyhead to Dolenjske Toplice | 1,020.76 mi (1,642.75 km) |
| Holyhead to Domzale | 986.91 mi (1,588.28 km) |
| Holyhead to Dornava | 1,027.35 mi (1,653.36 km) |
| Holyhead to Dragomer | 983.86 mi (1,583.37 km) |
| Holyhead to Dravograd | 985.00 mi (1,585.21 km) |
| Holyhead to Gorenja Vas | 971.15 mi (1,562.92 km) |
| Holyhead to Gorisnica | 1,030.56 mi (1,658.52 km) |
| Holyhead to Gornja Radgona | 1,019.42 mi (1,640.60 km) |
| Holyhead to Gornji Grad | 988.48 mi (1,590.81 km) |
| Holyhead to Gornji Petrovci | 1,023.23 mi (1,646.73 km) |
| Holyhead to Grad | 1,018.84 mi (1,639.66 km) |
