| Porthcawl to Dendermonde | 338.10 mi (544.11 km) |
| Porthcawl to Dessel | 380.13 mi (611.76 km) |
| Porthcawl to Destelbergen | 325.03 mi (523.09 km) |
| Porthcawl to Deurne | 352.05 mi (566.56 km) |
| Porthcawl to Diepenbeek | 396.08 mi (637.42 km) |
| Porthcawl to Diest | 379.50 mi (610.75 km) |
| Porthcawl to Diksmuide | 285.09 mi (458.82 km) |
| Porthcawl to Dilbeek | 346.79 mi (558.11 km) |
| Porthcawl to Dinant | 384.26 mi (618.41 km) |
| Porthcawl to Dison | 418.35 mi (673.26 km) |
| Porthcawl to Dour | 333.59 mi (536.86 km) |
| Porthcawl to Drongen | 319.30 mi (513.86 km) |
| Porthcawl to Duffel | 355.39 mi (571.95 km) |
| Porthcawl to Durbuy | 405.68 mi (652.88 km) |
| Porthcawl to Ecaussinnes-Lalaing | 347.76 mi (559.67 km) |
