| Castellammare del Golfo to Dendermonde | 995.67 mi (1,602.38 km) |
| Castellammare del Golfo to Dessel | 987.81 mi (1,589.72 km) |
| Castellammare del Golfo to Destelbergen | 1,003.06 mi (1,614.27 km) |
| Castellammare del Golfo to Deurne | 999.91 mi (1,609.19 km) |
| Castellammare del Golfo to Diepenbeek | 961.85 mi (1,547.95 km) |
| Castellammare del Golfo to Diest | 973.58 mi (1,566.83 km) |
| Castellammare del Golfo to Diksmuide | 1,023.00 mi (1,646.36 km) |
| Castellammare del Golfo to Dilbeek | 980.42 mi (1,577.83 km) |
| Castellammare del Golfo to Dinant | 932.07 mi (1,500.02 km) |
| Castellammare del Golfo to Dison | 935.71 mi (1,505.88 km) |
| Castellammare del Golfo to Dour | 964.63 mi (1,552.42 km) |
| Castellammare del Golfo to Drongen | 1,005.95 mi (1,618.92 km) |
| Castellammare del Golfo to Duffel | 991.18 mi (1,595.15 km) |
| Castellammare del Golfo to Durbuy | 926.53 mi (1,491.11 km) |
| Castellammare del Golfo to Ecaussinnes-Lalaing | 965.76 mi (1,554.24 km) |
