| Welwyn Garden City to Dendermonde | 192.50 mi (309.80 km) |
| Welwyn Garden City to Dessel | 231.64 mi (372.79 km) |
| Welwyn Garden City to Destelbergen | 179.76 mi (289.29 km) |
| Welwyn Garden City to Deurne | 204.14 mi (328.52 km) |
| Welwyn Garden City to Diepenbeek | 249.85 mi (402.10 km) |
| Welwyn Garden City to Diest | 233.05 mi (375.06 km) |
| Welwyn Garden City to Diksmuide | 142.23 mi (228.90 km) |
| Welwyn Garden City to Dilbeek | 203.26 mi (327.11 km) |
| Welwyn Garden City to Dinant | 246.11 mi (396.07 km) |
| Welwyn Garden City to Dison | 274.08 mi (441.09 km) |
| Welwyn Garden City to Dour | 197.94 mi (318.55 km) |
| Welwyn Garden City to Drongen | 174.27 mi (280.46 km) |
| Welwyn Garden City to Duffel | 208.54 mi (335.60 km) |
| Welwyn Garden City to Durbuy | 264.92 mi (426.35 km) |
| Welwyn Garden City to Ecaussinnes-Lalaing | 207.94 mi (334.64 km) |
