| Helensburgh to Dendermonde | 499.48 mi (803.84 km) |
| Helensburgh to Dessel | 520.83 mi (838.19 km) |
| Helensburgh to Destelbergen | 489.81 mi (788.27 km) |
| Helensburgh to Deurne | 500.90 mi (806.12 km) |
| Helensburgh to Diepenbeek | 545.84 mi (878.44 km) |
| Helensburgh to Diest | 530.71 mi (854.10 km) |
| Helensburgh to Diksmuide | 464.23 mi (747.10 km) |
| Helensburgh to Dilbeek | 514.07 mi (827.31 km) |
| Helensburgh to Dinant | 562.75 mi (905.67 km) |
| Helensburgh to Dison | 573.39 mi (922.78 km) |
| Helensburgh to Dour | 523.51 mi (842.51 km) |
| Helensburgh to Drongen | 485.93 mi (782.03 km) |
| Helensburgh to Duffel | 508.67 mi (818.62 km) |
| Helensburgh to Durbuy | 574.40 mi (924.41 km) |
| Helensburgh to Ecaussinnes-Lalaing | 525.90 mi (846.36 km) |
