| Monfalcone to Dendermonde | 563.04 mi (906.13 km) |
| Monfalcone to Dessel | 537.24 mi (864.60 km) |
| Monfalcone to Destelbergen | 574.28 mi (924.22 km) |
| Monfalcone to Deurne | 558.60 mi (898.98 km) |
| Monfalcone to Diepenbeek | 512.65 mi (825.02 km) |
| Monfalcone to Diest | 528.31 mi (850.23 km) |
| Monfalcone to Diksmuide | 607.31 mi (977.37 km) |
| Monfalcone to Dilbeek | 549.64 mi (884.56 km) |
| Monfalcone to Dinant | 503.18 mi (809.79 km) |
| Monfalcone to Dison | 485.25 mi (780.93 km) |
| Monfalcone to Dour | 550.14 mi (885.37 km) |
| Monfalcone to Drongen | 579.02 mi (931.84 km) |
| Monfalcone to Duffel | 551.41 mi (887.41 km) |
| Monfalcone to Durbuy | 487.32 mi (784.27 km) |
| Monfalcone to Ecaussinnes-Lalaing | 541.54 mi (871.52 km) |
