| Portsmouth to Dendermonde | 226.44 mi (364.42 km) |
| Portsmouth to Dessel | 271.17 mi (436.41 km) |
| Portsmouth to Destelbergen | 213.46 mi (343.53 km) |
| Portsmouth to Deurne | 242.90 mi (390.91 km) |
| Portsmouth to Diepenbeek | 283.70 mi (456.58 km) |
| Portsmouth to Diest | 267.73 mi (430.87 km) |
| Portsmouth to Diksmuide | 172.92 mi (278.28 km) |
| Portsmouth to Dilbeek | 232.93 mi (374.86 km) |
| Portsmouth to Dinant | 266.20 mi (428.41 km) |
| Portsmouth to Dison | 303.68 mi (488.73 km) |
| Portsmouth to Dour | 215.29 mi (346.47 km) |
| Portsmouth to Drongen | 207.68 mi (334.23 km) |
| Portsmouth to Duffel | 244.70 mi (393.81 km) |
| Portsmouth to Durbuy | 288.71 mi (464.63 km) |
| Portsmouth to Ecaussinnes-Lalaing | 231.26 mi (372.17 km) |
